Analysis of the co-occurrence of LOY and CHIP in Alzheimer's disease patients and control individuals using whole-exome sequencing (WES)

We performed deep whole-exome sequencing of FACS-isolated CD4+ T lymphocytes, NK and myeloid cells from men with AD and controls exhibiting either LOY or retention of Y chromosome (ROY). We found 39 sequence variants in known (canonical) myeloid driver genes of clonal hematopoiesis (MD-CH) and known lymphoid driver genes (LD-CH), and maximally 14 (35%) of these could co-exist with LOY within the same clone. We further describe 192 unknown drivers of clonal hematopoiesis (UD-CH), which were markedly enriched in AD-LOY individuals (odds ratio=4.8, Benjamini-Hochberg-adjusted p=0.041), and over 20% of these variants were protein-truncating. In myeloid cells, the total burden of all detected drivers correlated with the percentage of LOY cells (Spearman ρ=0.52, adjusted p=0.00041).

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

1 Dataset

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Dataset ID	Description	Technology	Samples
EGAD00001015757	This dataset contains whole exome sequencing data for 343 samples collected from 118 male donors, including 66 Alzheimer disease patients and 52 controls. DNA for sequencing was extracted from FACS-isolated CD4 T cells, NK cells and myeloid cells (monocytes or granulocytes).	Illumina NovaSeq 6000	153