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Table 1 Comparisons of Methods and Technologies for Spatial Transcriptomics

From: Advances in spatial transcriptomics and related data analysis strategies

Technique

Year

Sample

Resolution

Genes detected

Strategy

Characteristic

Limitation

References

LCM

1996

Kidney glomeruli, Alzheimer's plaques, in situ breast carcinoma, etc

Cellular

N/A

Microdissection

Faster to perform

No contamination to adjacent dissections

Low throughput

[25]

smFISH

1998

Normal rat kidney cells

Subcellular

2

In situ hybridization

Detects single transcripts

High sensitivity

Low throughput

[29]

ISS

2013

Human breast cancer

Subcellular

31

In situ sequencing

Based on the padlock probe

High accuracy

Needs pre-designed padlock probes

[38]

TIVA

2014

Mouse brain, human brain

Cellular

 ~ 9000

Spatial barcoding

Capture mRNA from live single cells in vivo

Low throughput

[72]

FISSEQ

2014

Human primary fibroblasts

Subcellular

8102

In situ sequencing

Transcriptome-wide RNA in situ sequencing

Low sequencing depth

[39]

seqFISH

2014

Yeast cells

Subcellular

12

In situ hybridization

Sequential barcoding

Enables single-cell-resolution imaging of the transcriptome

Occurrence of errors that may be accumulated

[34]

tomo-seq

2014

Zebrafish embryo

N/A

 ~ 12,000

Microdissection

High sensitivity

High spatial resolution. Construction of transcriptome-wide gene expression atlas in 3D

Several same biological samples needed

[27]

MERFISH

2015

Human fibroblast cells

Subcellular

140

In situ hybridization

Highly multiplexed

Capable of detecting and correcting errors

Limited RNA measurement

[35]

smHCR

2016

Zebrafish embryos, mouse brain

Subcellular

5

In situ hybridization

High sensitivity

Diffraction-limited resolution

Low throughput

[73]

Spatial Transcriptomics

2016

Adult mouse olfactory bulb

100 μm/55 μm (10 × Genomics Visium)

Entire transcriptome

Spatial barcoding

Provides spatial information

Contains several cells in each sequencing unit

[5]

Geo-seq

2017

Mouse early embryo, mouse brain, etc

10 cells

 > 8000

Microdissection

Profiles transcriptomes from several cells while preserving spatial information

Low throughput

[28]

NICHE-seq

2017

Immune cells

Cellular

N/A

Microdissection

Elucidates spatial construction of cell types and corresponding molecular pathways

Limited to genetically engineered models

[74]

BaristaSeq

2018

Baby hamster kidney cells

Subcellular

N/A

In situ sequencing

High efficiency

High accuracy

Needs pre-designed padlock probes

[75]

ProximID

2018

Mouse bone marrow

Cellular

N/A

Microdissection

Able to predict preferential associations between cells

Low throughput

[76]

STARmap

2018

Mouse primary visual cortex

Subcellular

160 ~ 1020

In situ sequencing

Able to measure the expression of a single cell in intact tissue

High efficiency

High accuracy

Low throughput

[42]

osmFISH

2018

Mouse brain

Subcellular

33

In situ hybridization

Automatically delineates tissue regions

Able to process large tissue areas

Low throughput

[32]

Slide-seq

2019

Mouse brain

10 μm

Entire transcriptome

Spatial barcoding

High spatial resolution

Low capturing efficiency

[43]

seqFISH + 

2019

Mouse brain, fibroblast cells

Subcellular

10,000

In situ hybridization

High accuracy

Sub-diffraction-limit resolution

Low throughput

[77]

Nanostring GeoMx DSP

2019

Formalin-fixed, paraffin-embedded patient tissue

10 μm

N/A

Spatial barcoding

High-plex

May create bias in selecting regions

[78]

DNA microscopy

2019

MDA-MB-231 cells, BT-549 cells

Cellular

N/A

In situ sequencing

Able to image biological specimens without optical information

Relies on thermodynamic entropy

Empty space causing sparse signals

[79]

APEX-seq

2019

HEK293T cells

Subcellular

N/A

Spatial barcoding

Performed in living cells

Allows transcript isoforms with distinct localization to be distinguished

Limited application to human tissue

[80]

HDST

2019

Mouse olfactory bulb

2 μm

Entire transcriptome

Spatial barcoding

High resolution

Data sparsity

[45]

ZipSeq

2020

NIH/3T3 fibroblasts, live lymph node sections, mouse breast cancer

Cellular

Entire transcriptome

Spatial barcoding

Performed on live cells in intact tissues

Limited spatial resolution

[81]

DBiT-seq

2020

Mouse embryos

10 μm

22,969

Spatial barcoding

High spatial resolution

Avoid lysis of tissues

Limited flow channels

[82]

ExSeq

2021

Mouse brain, human metastatic breast cancer

Subcellular

3039

In situ sequencing

High spatially precision

Highly multiplexed imaging of RNAs in intact cells and tissues

Limits in detecting short transcripts

[40]

Slide-seqV2

2021

Mouse embryos, mouse brain

10 μm

1349

Spatial barcoding

High resolution

Higher sensitivity than Slide-seq

May capture transcripts from multiple cells

[44]

XYZeq

2021

Human HEK293T cells, mouse NIH 3T3 cells

500 μm

Entire transcriptome

Spatial barcoding

Enables unbiased single-cell transcriptomic analysis

Requires specialized device

[83]

Seq-Scope

2021

Mouse liver and colon sections

 ~ 0.5–0.8 μm

Entire transcriptome

Spatial barcoding

High transcriptome capture efficiency

Able to visualize the histological organization

Focused on only poly-A transcriptome

[46]

sci-Space

2021

Mouse embryos

200 μm

Entire transcriptome

Spatial barcoding

Retains single-cell resolution while capturing spatial information

Limited spatial resolution

[84]

Stereo-seq

2022

Mouse embryos, adult mouse brain and olfactory bulb

0.22 μm

Entire transcriptome

Spatial barcoding

High resolution

High sensitivity

Large visualizing field

Limited capturing efficiency

[85]

Ex-ST

2022

Mouse olfactory bulb and hippocampus

20 μm

Entire transcriptome

Spatial barcoding

Uses polyelectrolyte matrices to achieve higher resolution and detection efficiency

May capture transcripts from multiple cells

[86]

  1. smFISH Single-molecule RNA Fluorescence In Situ Hybridization, LCM Laser Capture Microdissection, ISS In Situ Sequencing, TIVA Transcriptome In Vivo Analysis, FISSEQ Fluorescent In Situ RNA Sequencing, seqFISH Sequential Fluorescence In Situ Hybridization, tomo-seq RNA Tomography, MERFISH Multiplexed Error-robust Fluorescence In Situ Hybridization, smHCR Single-molecule Hybridization Chain Reaction, Geo-seq Geographical Position Sequencing, BaristaSeq Barcode In Situ Targeted Sequencing, STARmap Spatially-resolved Transcript Amplicon Readout Mapping, osmFISH Ouroboros Single-molecule RNA Fluorescence In Situ Hybridization. DSP, Digital Spatial Profiling, HDST High-Definition Spatial Transcriptomics, DBiT Deterministic Barcoding in Tissue. ExSeq Expansion Sequencing, Stereo-seq Spatial Enhanced Resolution Omics-sequencing, Ex-ST Expansion Spatial Transcriptomics