Perform spatial transcriptomics with Visium
This is a Pilot Program. Click here to find out what this means for your Visium project.
The Visium Spatial Gene Expression solution by 10x Genomics allows you to analyze the whole transcriptome on a fresh frozen tissue section. Discover the spatial organization of cell types, states, and biomarkers.
Visium Spatial Gene Expression works with slides developed by 10x Genomics. Each slide contains 4 capture areas with 5,000 barcoded spots. Each spot contains millions of capture oligonucleotides.
The fresh-frozen tissue sections are placed, fixed, stained, and permeabilized on the capture area of the slide.
The permeabilization step releases the mRNA that then binds to spatially barcoded capture spots. cDNA is then synthesized from captured mRNA and prepared into a sequencing library.
After sequencing, the data can be analyzed and visualized with 10x Genomics Space Ranger and Loupe Browser.
At Single Cell Discoveries, we offer Visium Spatial Gene Expression as a complete service. All you need to do is prepare the fresh-frozen tissue slides in your own lab.
Why work with us
- Dedicated service provider
With our focus on single-cell sequencing only, we are the one-stop-shop for all your single-cell sequencing projects.
- Continued support
We make sure to provide continuous support, even after we have sent you the results from your experiment.
- Cost-effective services
We work with you and your budget to make sure you don't have to break the bank.
- Expert team
We have been running single-cell experiments since 2012, and have published in numerous high-impact journals
- Short turnaround times
From receipt of the samples, you can expect results in 4 - 6 weeks.
- Based in Europe
Your samples are processed and sequenced in Europe (Netherlands & UK)
Key benefits of Visium
- Add tissue context to your transcriptomics data
Visium allows you to place transcriptomics data within its tissue context. Analyze different cell types within their spatial organization.
- Combine with histology
The workflow is compatible with H&E staining which provides you with morphological context.
- High spatial resolution
Visium captures 1-10 cells on average per spot. This allows you to link spatial information to a tissue section in great detail.
Step 0: Tissue optimization
If it’s your first Visium experiment or you’re working with new tissue, it is required to optimize for this type of tissue. This is done by using the Visium Spatial Tissue Optimization Slide, which contains 8 capture areas.
We send you the optimization slide and you place the tissue sections on the slide in your own lab and send it back to us. By processing your optimization slide, we can select the optimal permeabilization time.
When this is determined and everything looks good, we can start with step 1: sample preparation.
Step 1: Sample preparation
After we send you the Visium Spatial Gene Expression slides, you can start with the sample preparation. In your own lab, you will prepare the slide. You place the fresh-frozen tissue on the capture area of the gene expression slide and send the slides back to us.
Check out the resources by 10x Genomics linked below to find out how this works.
Step 2: Sample processing
When we receive your slides, we start by processing the optimization slide if applicable. Then, we stain the slides with an H&E staining to visualize the tissue section.
After the staining, we permeabilize the tissue to release the mRNA. The mRNA then binds to the spatially barcoded oligonucleotides which are present on the spots.
Now that the mRNA is captured, we perform a reverse transcription reaction to synthesize cDNA. The cDNA is then pooled so we can complete the library preparation and send it out for sequencing.
Step 3: Sequencing and data analysis
We send the NGS libraries to one of our sequencing partners for Next-Generation Sequencing on the Illumina NovaSeq 6000.
When we’ve received the sequencing data, we map it to the appropriate reference transcriptome.
Mapping of sequencing data and initial quality control reports are done with the standard 10x Genomics Space Ranger pipeline. You'll be provided with a cloupe data file for browsing the data with the 10x Genomics Loupe Browser.
Since we are still gaining experience in offering Visium Spatial Gene Expression as a service, we have decided to offer it as a pilot version for now.
For your project, this means that:
- We may process your tissue type of interest for the first time.
- You get an attractive discount on Visium as long as it is a pilot program. This is a discount of €750 on the tissue optimization step.
- The results (images, cluster plots) can be used for marketing purposes, but we will always check this with you first.
The Pilot Program is a temporary version of our Visium Spatial Gene Expression service. After this, we will offer it as a full service, and you can no longer make use of the attractive discounts.
As with all of our services, we provide ongoing support from our single-cell sequencing specialists. For each Visium Spatial Gene Expression project, we provide the following:
- Regular email updates during sample processing
- Raw sequencing data (FASTQ files)
- A standard Space Ranger QC report
- A standard Loupe Browser visualization file (cloupe)
- Mapped count tables for downstream analysis
- A preliminary differential gene expression analysis
No. The barcoded spots capture 1-10 cells per spot. However, 10x Genomics is working on Visium HD, a single-cell spatial transcriptomics solution and plans on releasing it Q1, 2022
10x Genomics has launched this protocol in April, 2021. Please contact us at firstname.lastname@example.org to discuss this option.
At the moment, we don’t offer this as part of service.
We do not yet perform a customized preliminary cluster analysis. We do deliver you the standard output by Space Ranger.
Internally, 10x Genomics has optimized Visium for different tissues derived from human, mouse, rat, and zebrafish. However, Visium should be compatible with most mRNA-containing tissues.
You don’t have to, but we recommend it because we process the entire slide. If you don’t use all the capture areas, the costs remain the same.
Ready to proceed? Use the form below to sign up for our Pilot Program. We'll get in touch as soon as possible.