scholarly journals Splotch: Robust estimation of aligned spatial temporal gene expression data

2019 ◽  
Author(s):  
Tarmo Äijö ◽  
Silas Maniatis ◽  
Sanja Vickovic ◽  
Kristy Kang ◽  
Miguel Cuevas ◽  
...  

AbstractSpatial genomics technologies enable new approaches to study how cells interact and function in intact multicellular environments but present a host of technical and computational challenges. Here we describe Splotch, a novel computational framework for the analysis of spatially resolved transcriptomics data. Splotch aligns transcriptomics data from multiple tissue sections and timepoints to generate improved posterior estimates of gene expression. We demonstrate alignment of a large corpus of single-cell RNA-seq data into an automatically generated spatial-temporal coordinate and study optimal design for spatial transcriptomics experiments.

Science ◽  
2019 ◽  
Vol 363 (6434) ◽  
pp. 1463-1467 ◽  
Author(s):  
Samuel G. Rodriques ◽  
Robert R. Stickels ◽  
Aleksandrina Goeva ◽  
Carly A. Martin ◽  
Evan Murray ◽  
...  

Spatial positions of cells in tissues strongly influence function, yet a high-throughput, genome-wide readout of gene expression with cellular resolution is lacking. We developed Slide-seq, a method for transferring RNA from tissue sections onto a surface covered in DNA-barcoded beads with known positions, allowing the locations of the RNA to be inferred by sequencing. Using Slide-seq, we localized cell types identified by single-cell RNA sequencing datasets within the cerebellum and hippocampus, characterized spatial gene expression patterns in the Purkinje layer of mouse cerebellum, and defined the temporal evolution of cell type–specific responses in a mouse model of traumatic brain injury. These studies highlight how Slide-seq provides a scalable method for obtaining spatially resolved gene expression data at resolutions comparable to the sizes of individual cells.


2021 ◽  
Author(s):  
Madhavi Tippani ◽  
Heena Rajesh Divecha ◽  
Joseph L. Catallini ◽  
Lukas M Weber ◽  
Abby Spangler ◽  
...  

Motivation: Recent advances in spatially-resolved transcriptomics technologies such as the 10x Genomics Visium platform have enabled the generation of transcriptome-wide spatial expression maps within intact tissue. However, steps for processing the high-resolution histology images, extracting relevant features from the images, and integrating them with the gene expression data remain unresolved. Results: We describe VistoSeg, a MATLAB pipeline to process, analyze, and interactively visualize the high-resolution images from the 10x Genomics Visium platform. The output from VistoSeg can then be integrated with the spatial-molecular information in downstream analyses using any programming language, such as R or Python. Availability: VistoSeg is available at https://github.com/LieberInstitute/VistoSeg with a tutorial at http://research.libd.org/VistoSeg


2014 ◽  
Vol 132 ◽  
pp. 42-53 ◽  
Author(s):  
D. Gutiérrez-Avilés ◽  
C. Rubio-Escudero ◽  
F. Martínez-Álvarez ◽  
J.C. Riquelme

2019 ◽  
Vol 15 (2) ◽  
pp. e1006792 ◽  
Author(s):  
Brandon Monier ◽  
Adam McDermaid ◽  
Cankun Wang ◽  
Jing Zhao ◽  
Allison Miller ◽  
...  

Author(s):  
D Fumagalli ◽  
B Haibe-Kains ◽  
S Michiels ◽  
DN Brown ◽  
D Gacquer ◽  
...  

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