Joint cell segmentation and cell type annotation for spatial transcriptomics.
Joint cell segmentation and cell type annotation for spatial transcriptomics.
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空间转录组学的联合细胞分割和细胞类型注释。
DOI:
10.15252/msb.202010108
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发表时间:
2021-06
影响因子:
9.9
通讯作者:
Wollman R
中科院分区:
文献类型:
--
作者:
Littman R;Hemminger Z;Foreman R;Arneson D;Zhang G;Gómez-Pinilla F;Yang X;Wollman R
RNA hybridization‐based spatial transcriptomics provides unparalleled detection sensitivity. However, inaccuracies in segmentation of image volumes into cells cause misassignment of mRNAs which is a major source of errors. Here, we develop JSTA, a computational framework for joint cell segmentation and cell type annotation that utilizes prior knowledge of cell type‐specific gene expression. Simulation results show that leveraging existing cell type taxonomy increases RNA assignment accuracy by more than 45%. Using JSTA, we were able to classify cells in the mouse hippocampus into 133 (sub)types revealing the spatial organization of CA1, CA3, and Sst neuron subtypes. Analysis of within cell subtype spatial differential gene expression of 80 candidate genes identified 63 with statistically significant spatial differential gene expression across 61 (sub)types. Overall, our work demonstrates that known cell type expression patterns can be leveraged to improve the accuracy of RNA hybridization‐based spatial transcriptomics while providing highly granular cell (sub)type information. The large number of newly discovered spatial gene expression patterns substantiates the need for accurate spatial transcriptomic measurements that can provide information beyond cell (sub)type labels. JSTA is a new computational method for joint cell segmentation and cell type annotation using spatial transcriptomics data and scRNAseq reference data.
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影响因子:
64.8
作者:
Halpern KB;Shenhav R;Matcovitch-Natan O;Toth B;Lemze D;Golan M;Massasa EE;Baydatch S;Landen S;Moor AE;Brandis A;Giladi A;Avihail AS;David E;Amit I;Itzkovitz S
通讯作者:
Itzkovitz S
影响因子:
64.5
作者:
Goltsev Y;Samusik N;Kennedy-Darling J;Bhate S;Hale M;Vazquez G;Black S;Nolan GP
通讯作者:
Nolan GP
影响因子:
64.5
作者:
Asp, Michaela;Giacomello, Stefania;Lundeberg, Joakim
通讯作者:
Lundeberg, Joakim
影响因子:
14.8
作者:
通讯作者:
--
影响因子:
48
作者:
Codeluppi, Simone;Borm, Lars E.;Linnarsson, Sten
通讯作者:
Linnarsson, Sten