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imply: improving cell-type deconvolution accuracy using personalized reference profiles

delete2024-04-29
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OA
AI
G
Guanqun Meng
P
Pan, Yue
T
Tang, Wen
Z
Zhang, Lijun
C
Cui, Ying
S
Schumacher, Fredrick R.
W
Wang, Ming
R
Rui Wang
S
Sijia He
K
Krischer, Jeffrey
L
Li, Qian *
H
Hao Feng *
DOI:10.1186/s13073-024-01338-zdelete
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Abstract

Abstract

En 中文
Using computational tools, bulk transcriptomics can be deconvoluted to estimate the abundance of constituent cell types. However, existing deconvolution methods are conditioned on the assumption that the whole study population is served by a single reference panel, ignoring person-to-person heterogeneity. Here, we present imply , a novel algorithm to deconvolute cell type proportions using personalized reference panels. Simulation studies demonstrate reduced bias compared with existing methods. Real data analyses on longitudinal consortia show disparities in cell type proportions are associated with several disease phenotypes in Type 1 diabetes and Parkinson's disease. imply is available through the R/Bioconductor package ISLET at https://bioconductor.org/packages/ISLET/.
Keywords:
Deconvolution
Bulk RNA-seq
Personalized reference
Admixed samples
Cell-type-specific
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Genome Medicine cover
Genome Medicine
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U
University System of Ohio
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Stanford University
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Case Western Reserve University
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