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scFTD-seq: freeze-thaw lysis based, portable approach toward highly distributed single-cell 3' mRNA profiling
Burak Dura1, Jin-Young Choi2, Kerou Zhang1
1Department of Biomedical Engineering, Yale University, New Haven, CT 06520, USA.
Nucleic Acids Research
|November 22, 2018
Summary
We developed scFTD-seq, a new single-cell sequencing method using freeze-thaw lysis on a microchip. This technique efficiently profiles rare T cells in lupus, offering a scalable and cost-effective alternative for gene expression analysis.
Area of Science:
- Biotechnology
- Genomics
- Immunology
Background:
- Single-cell gene expression profiling is crucial for understanding cellular heterogeneity.
- Microwell-based platforms offer advantages for low-input samples but face cell lysis challenges.
- Existing methods for single-cell RNA sequencing (scRNA-seq) can be complex and costly.
Purpose of the Study:
- To introduce scFTD-seq, a novel microchip platform for single-cell freeze-thaw lysis and 3' mRNA sequencing.
- To demonstrate the compatibility of freeze-thaw lysis with 3' scRNA-seq despite potential RNA fragmentation concerns.
- To profile rare circulating follicular helper T cells involved in systemic lupus erythematosus (SLE) pathogenesis.
Main Methods:
- Development of a microchip platform enabling direct single-cell freeze-thaw lysis.
- Application of the platform to 3' mRNA sequencing of circulating follicular helper T cells.
- Analysis of transcriptional heterogeneity and effector functions in pathogenic T cells.
Main Results:
- scFTD-seq provides format flexibility with a simplified workflow, reducing preparation steps and hands-on time.
- Data quality and cost per sample are comparable to state-of-the-art scRNA-seq platforms.
- The study successfully delineated transcriptional heterogeneity within rare T cells implicated in SLE.
Conclusions:
- Freeze-thaw lysis is a viable and effective method for 3' scRNA-seq.
- scFTD-seq offers a scalable, cost-effective, and simplified approach for single-cell gene expression analysis.
- The platform's ability to decouple cell isolation and library preparation facilitates distributed sampling and centralized processing, promoting wider adoption.
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