TY - JOUR
T1 - Retinal ganglion cell-specific genetic regulation in primary open-angle glaucoma
AU - Daniszewski, Maciej
AU - Senabouth, Anne
AU - Liang, Helena H.
AU - Han, Xikun
AU - Lidgerwood, Grace E.
AU - Hernández, Damián
AU - Sivakumaran, Priyadharshini
AU - Clarke, Jordan E.
AU - Lim, Shiang Y.
AU - Lees, Jarmon G.
AU - Rooney, Louise
AU - Gulluyan, Lerna
AU - Souzeau, Emmanuelle
AU - Graham, Stuart L.
AU - Chan, Chia Ling
AU - Nguyen, Uyen
AU - Farbehi, Nona
AU - Gnanasambandapillai, Vikkitharan
AU - McCloy, Rachael A.
AU - Clarke, Linda
AU - Kearns, Lisa S.
AU - Mackey, David A.
AU - Craig, Jamie E.
AU - MacGregor, Stuart
AU - Powell, Joseph E.
AU - Pébay, Alice
AU - Hewitt, Alex W.
PY - 2022/6/8
Y1 - 2022/6/8
N2 - To assess the transcriptomic profile of disease-specific cell populations, fibroblasts from patients with primary open-angle glaucoma (POAG) were reprogrammed into induced pluripotent stem cells (iPSCs) before being differentiated into retinal organoids and compared with those from healthy individuals. We performed single-cell RNA sequencing of a total of 247,520 cells and identified cluster-specific molecular signatures. Comparing the gene expression profile between cases and controls, we identified novel genetic associations for this blinding disease. Expression quantitative trait mapping identified a total of 4,443 significant loci across all cell types, 312 of which are specific to the retinal ganglion cell subpopulations, which ultimately degenerate in POAG. Transcriptome-wide association analysis identified genes at loci previously associated with POAG, and analysis, conditional on disease status, implicated 97 statistically significant retinal ganglion cell-specific expression quantitative trait loci. This work highlights the power of large-scale iPSC studies to uncover context-specific profiles for a genetically complex disease.
AB - To assess the transcriptomic profile of disease-specific cell populations, fibroblasts from patients with primary open-angle glaucoma (POAG) were reprogrammed into induced pluripotent stem cells (iPSCs) before being differentiated into retinal organoids and compared with those from healthy individuals. We performed single-cell RNA sequencing of a total of 247,520 cells and identified cluster-specific molecular signatures. Comparing the gene expression profile between cases and controls, we identified novel genetic associations for this blinding disease. Expression quantitative trait mapping identified a total of 4,443 significant loci across all cell types, 312 of which are specific to the retinal ganglion cell subpopulations, which ultimately degenerate in POAG. Transcriptome-wide association analysis identified genes at loci previously associated with POAG, and analysis, conditional on disease status, implicated 97 statistically significant retinal ganglion cell-specific expression quantitative trait loci. This work highlights the power of large-scale iPSC studies to uncover context-specific profiles for a genetically complex disease.
KW - eQTL
KW - glaucoma
KW - human induced pluripotent stem cells
KW - retinal ganglion cells
KW - retinal organoids
KW - single-cell RNA sequencing
KW - transcriptomics
UR - http://www.scopus.com/inward/record.url?scp=85134802161&partnerID=8YFLogxK
UR - http://purl.org/au-research/grants/NHMRC/1150144
UR - http://purl.org/au-research/grants/NHMRC/1143163
UR - http://purl.org/au-research/grants/ARC/180101405
U2 - 10.1016/j.xgen.2022.100142
DO - 10.1016/j.xgen.2022.100142
M3 - Article
AN - SCOPUS:85134802161
SN - 2666-979X
VL - 2
JO - Cell Genomics
JF - Cell Genomics
IS - 6
M1 - 100142
ER -