ClusterMap for multi-scale clustering analysis of spatial gene expression.

ClusterMap for multi-scale clustering analysis of spatial gene expression.
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DOI:
10.1038/s41467-021-26044-x
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发表时间:
2021-10-08
影响因子:
16.6
通讯作者:
Wang X
Wang X
中科院分区:
综合性期刊1区
文献类型:
--
作者:
He Y;Tang X;Huang J;Ren J;Zhou H;Chen K;Liu A;Shi H;Lin Z;Li Q;Aditham A;Ounadjela J;Grody EI;Shu J;Liu J;Wang X

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Quantifying RNAs in their spatial context is crucial to understanding gene expression and regulation in complex tissues. In situ transcriptomic methods generate spatially resolved RNA profiles in intact tissues. However, there is a lack of a unified computational framework for integrative analysis of in situ transcriptomic data. Here, we introduce an unsupervised and annotation-free framework, termed ClusterMap, which incorporates the physical location and gene identity of RNAs, formulates the task as a point pattern analysis problem, and identifies biologically meaningful structures by density peak clustering (DPC). Specifically, ClusterMap precisely clusters RNAs into subcellular structures, cell bodies, and tissue regions in both two- and three-dimensional space, and performs consistently on diverse tissue types, including mouse brain, placenta, gut, and human cardiac organoids. We demonstrate ClusterMap to be broadly applicable to various in situ transcriptomic measurements to uncover gene expression patterns, cell niche, and tissue organization principles from images with high-dimensional transcriptomic profiles. In situ transcriptomics maps RNA expression patterns across intact tissues taking our understanding of gene expression to a new level. Here, the authors present a computational method that uncovers gene expression, cell niche, and tissue region patterns from 2D and 3D spatial transcriptomics.
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