Spatially aware dimension reduction for spatial transcriptomics.
Spatially aware dimension reduction for spatial transcriptomics.
复制标题
空间转录组学的空间感知降维。
DOI:
10.1038/s41467-022-34879-1
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发表时间:
2022-11-23
影响因子:
16.6
通讯作者:
Zhou, Xiang
中科院分区:
文献类型:
--
作者:
Shang, Lulu;Zhou, Xiang
Spatial transcriptomics are a collection of genomic technologies that have enabled transcriptomic profiling on tissues with spatial localization information. Analyzing spatial transcriptomic data is computationally challenging, as the data collected from various spatial transcriptomic technologies are often noisy and display substantial spatial correlation across tissue locations. Here, we develop a spatially-aware dimension reduction method, SpatialPCA, that can extract a low dimensional representation of the spatial transcriptomics data with biological signal and preserved spatial correlation structure, thus unlocking many existing computational tools previously developed in single-cell RNAseq studies for tailored analysis of spatial transcriptomics. We illustrate the benefits of SpatialPCA for spatial domain detection and explores its utility for trajectory inference on the tissue and for high-resolution spatial map construction. In the real data applications, SpatialPCA identifies key molecular and immunological signatures in a detected tumor surrounding microenvironment, including a tertiary lymphoid structure that shapes the gradual transcriptomic transition during tumorigenesis and metastasis. In addition, SpatialPCA detects the past neuronal developmental history that underlies the current transcriptomic landscape across tissue locations in the cortex. Spatial transcriptomics analyses can be affected by noise and spatial correlation across tissue locations. Here, the authors develop SpatialPCA, a spatially-aware dimensionality reduction method that explicitly models spatial correlation structures, and show its application to the analysis of healthy and tumour tissues.
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影响因子:
3.7
作者:
Choi B;Lee HW;Mo S;Kim JY;Kim HW;Rhyu IJ;Hong E;Lee YK;Choi JS;Kim CH;Kim H
通讯作者:
Kim H
影响因子:
7.3
作者:
Barone F;Gardner DH;Nayar S;Steinthal N;Buckley CD;Luther SA
通讯作者:
Luther SA
影响因子:
16.6
作者:
Call CL;Bergles DE
通讯作者:
Bergles DE
影响因子:
14.9
作者:
Bult CJ;Blake JA;Smith CL;Kadin JA;Richardson JE;Mouse Genome Database Group
通讯作者:
Mouse Genome Database Group
影响因子:
64.5
作者:
Azizi E;Carr AJ;Plitas G;Cornish AE;Konopacki C;Prabhakaran S;Nainys J;Wu K;Kiseliovas V;Setty M;Choi K;Fromme RM;Dao P;McKenney PT;Wasti RC;Kadaveru K;Mazutis L;Rudensky AY;Pe'er D
通讯作者:
Pe'er D