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Singapore Gastric Cancer Consortium Data Access Committee

Contact Information

Patrick Tan
gmstanp@duke-nus.edu.sg

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This DAC controls 11 datasets

Dataset ID	Description	Technology	Samples
EGAD00001015433	The GASCAD-II dataset from the Singapore Gastric Cancer Consortium includes paired tumor-blood whole exome sequencing data for 209 gastric cancer (GC) patients, along with whole transcriptome sequencing data for 125 GC samples. Whole exome sequencing was conducted using Agilent SureSelect Human All Exon V6 kits. For RNA sequencing, total RNA was isolated using the RNeasy Mini Kit, and libraries were prepared with the TruSeq Stranded Total RNA with Ribo-Zero Gold protocol (Illumina). Aligned BAM files for both exome and RNAseq data are included in this dataset	Illumina NovaSeq 6000	1
EGAD50000000500	This whole-section GeoMx Digital Spatial Profiler (DSP) dataset was a part of the discovery cohort in the study. The dataset contains raw FASTQ files from Regions of Interest (ROIs) across complete tumor tissue sections, enabling detection of 18,000 protein-coding genes. GeoMx DSP data from 1063 ROIs (after QC) from 15 GCs were included in the datasets.	Illumina NovaSeq X	1233
EGAD50000000660	This dataset includes paired tumor-blood whole exome sequencing data for 209 gastric cancer (GC) patients, along with whole transcriptome sequencing data for 125 GC samples. Whole exome sequencing was conducted using Agilent SureSelect Human All Exon V6 kits. For RNA sequencing, total RNA was isolated using the RNeasy Mini Kit, and libraries were prepared with the TruSeq Stranded Total RNA with Ribo-Zero Gold protocol (Illumina). Aligned BAM files for both exome and RNAseq data are included in this dataset.	Illumina NovaSeq 6000	543
EGAD50000000715	Whole exome sequencing of 66 gastric samples and whole transcriptome sequencing of 191 gastric samples.	Illumina HiSeq 4000	257
EGAD50000000898	HER2-positive gastric cancer (HER2+ GC) exhibits significant intra-tumoral heterogeneity and frequent development of resistance to HER2-targeted therapies. This study aimed to characterize the spatial tumor microenvironment (TME) and identify mechanisms of resistance to HER2 blockade including trastuzumab and trastuzumab deruxtecan (T-DXd) in HER2+ GC, with the goal of informing novel therapeutic strategies. We performed spatial transcriptomics on pre- and post-treatment samples from patients with HER2+ metastatic GC who received trastuzumab-based therapy.	unspecified	623
EGAD50000000903	This Tissue Microarray (TMA) GeoMx Digital Spatial Profiler (DSP) dataset was a part of the validation cohort in the study. Tumor tissue blocks were first annotated as tumor core or tumor edge by pathologists, then Regions of Interest (ROIs) were selected on various blocks. The data is in FASTQ format. GeoMx DSP data from 840 ROIs (after QC) from 86 GCs were included in the datasets.	Illumina NovaSeq 6000	848
EGAD50000001199	This dataset consist of 72 samples profiled on whole exome sequencing and 94 samples profiled on whole transcriptome sequencing. The Agilent SureSelect Human All Exon v6 kit (Agilent Technologies) was used for whole exome sequencing. For RNA-seq experiments, library preparation was conducted using the Tru-Seq Stranded Total RNA with Ribo-Zero Gold kit protocol (Illumina). Libraries were sequenced on a HiSeq4000 sequencer using the paired-end 150 bp read option. Sequences in cram format was provided.	Illumina NovaSeq X	166
EGAD50000001538	We perform genome-wide EM-seq of 14 patients with concurrent matched normal, dysplasia and early gastric samples from South Korea. The dataset contains cram files from 38 samples.	Illumina NovaSeq 6000	38
EGAD50000001539	We generated whole genome sequencing data from 15 pairs of IM and matched normal. The dataset contains cram files from 30 samples.	Illumina NovaSeq 6000	30
EGAD50000001540	We perform targeted DNA sequencing of intestinal metaplasia of 463 IM and paired germline samples. An additional 48 IM and paired germline samples were included as validation cohort. The dataset contains cram files from 1022 IM and paired normal samples.	Illumina NovaSeq 6000	1022
EGAD50000002010	We perform bulk RNA-seq of 10 and single cell RNAseq of 2 intestinal metaplasia samples. We also perform stereoseq spatial transcriptomic analysis of 4 gastric cancer samples. The dataset contain cram files from 10 bulk RNAseq samples, and raw fastq files from 2 single cell RNAseq and 4 stereo-seq samples.	DNBSEQ-T7 Illumina NovaSeq 6000	16