Genomics

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Genomic Landscape of Diploid and Aneuploid Microsatellite Stable Early Onset Colorectal Cancer


ABSTRACT: We applied DNA content based flow cytometry methods to interrogate the genomes of clinical samples from 21 patients with early onset colorectal carcinoma (EOCRC). These included a fresh frozen sample obtained from a surgical resection and 20 archived formalin fixed paraffin embedded (FFPE) samples from a Mayo Clinic tissue bank. Our flow sorting methods are compatible with analyses of biopsies of interest including FFPE samples and frozen biopsies. Notably for this study we distinguished and sorted diploid and aneuploid tumors. We then profiled the exomes of tumor normal pairs for all 21 cases, the whole genome copy number for a subset of 6 samples, and telomere length in diploid and aneuploid nuclei from 9 cases. Additionally, we screened the 20 FFPE cases for EGFR expression with an established IHC assay.

ORGANISM(S): Homo sapiens

PROVIDER: GSE240339 | GEO | 2024/02/21

REPOSITORIES: GEO

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