The molecular landscape of homologous recombination deficient, end-stage, high grade serous ovarian cancer

High grade serous ovarian cancer (HGSC) is frequently characterized by homologous recombination (HR) DNA repair deficiency, and while most such tumors are sensitive to initial treatment, acquired resistance is common. We undertook a multi-omics approach to interrogating mechanisms of resistance, using multiple autopsy samples collected from 15 women with HR-deficient HGSC.

Type: Other
Archiver: European Genome-Phenome Archive (EGA)

4 Datasets

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Dataset ID	Description	Technology	Samples
EGAD00001009746	Whole genome sequencing of high-grade serous ovarian cancer (HGSC) tumours and matched normals from 15 patients with homologous recombination deficiencies. The dataset includes fastq files from 56 HGSC tumours (1 primary, 1 relapse, 54 end-stage) and 15 matched normals. Sequence libraries were generated from tumour and matched normal genomic DNA using the KAPA HyperPrep PCR-free library preparation kit (Roche), or the Illumina TruSeq DNA Nano kit according to manufacturer’s instructions. Sequencing was carried out by the Kinghorn Centre for Clinical Genomics Sequencing Laboratory (Sydney, Australia) on the HiSeq X Ten System (Illumina) or by the Australian Genome Research Facility (Melbourne, Australia) on an Illumina NovaSeq to a minimum base coverage of 30-fold for normal DNA and 60-fold for tumour DNA samples.	unspecified	66
EGAD00001009747	Targeted DNA sequencing of high-grade serous ovarian cancer (HGSC) tumour and normal samples from 15 patients with homologous recombination deficiencies. The dataset includes fastq files from 243 HGSC tumours (15 primary, 3 relapse, 225 end-stage) and 15 normals from 15 HGSC patients. Following target hybrid capture of 63 genes involved in DNA repair and response to treatment with an Agilent SureSelect XT panel, sequencing libraries were generated using the SureSelect XT Low Input Target Enrichment System (Agilent) as per the manufacturer's protocol. Libraries were sequenced on an Illumina NextSeq 500 at the Peter MacCallum Cancer Centre (Melbourne, Australia).	NextSeq 500	266
EGAD00001009844	RNAseq of 45 high-grade serous ovarian cancer tumour samples. Libraries were generated using the NEB Ultra II Directional RNA library Prep kit with polyA enrichment. Libraries were sequenced as paired-end 50 or 100bp on an Illumina NextSeq or NovaSeq.	Illumina NovaSeq 6000	1
EGAD00010002398	Tumor and matched normal DNA profiling by SNP array	Illumina Infinium OmniExpress-24 BeadChip array	82