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[An optimized protocol of meniscus cell extraction for single-cell RNA sequencing].

N Chen1, H Wu2, Z Deng1

  • 1Department of Orthopedics, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.

Nan Fang Yi Ke Da Xue Xue Bao = Journal of Southern Medical University
|October 18, 2021
PubMed
Summary
This summary is machine-generated.

This study optimized meniscus cell extraction for single-cell RNA sequencing, yielding more cells with high viability. The improved protocol ensures stable cell suspensions for reliable transcriptomic analysis.

Keywords:
cell extractionmeniscussingle-cell RNA sequencingsingle-cell suspension

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Area of Science:

  • Biotechnology
  • Molecular Biology
  • Regenerative Medicine

Background:

  • Meniscus cell extraction is crucial for understanding knee joint health and disease.
  • Current protocols may limit cell yield and viability, impacting downstream single-cell RNA sequencing (scRNA-seq).
  • Optimizing cell suspension preparation is essential for accurate scRNA-seq analysis.

Purpose of the Study:

  • To develop and validate an optimized protocol for meniscus cell extraction.
  • To enhance cell yield and viability for scRNA-seq applications.
  • To ensure the stability and reliability of meniscus-derived single-cell suspensions.

Main Methods:

  • Compared routine (short-time and long-time digestion) and optimized cell extraction protocols.
  • Evaluated cell number and viability post-extraction.
  • Analyzed scRNA-seq data to assess cell suspension stability and cell type identification.
  • Validated the protocol against published meniscus scRNA-seq datasets.

Main Results:

  • The optimized protocol yielded over 1x10^5 cells, significantly more than routine methods.
  • Achieved cell viability exceeding 80%, the highest among tested protocols.
  • scRNA-seq data showed <20% mitochondrial gene content in >80% of cells, indicating high quality.
  • Identified key cell populations including CD34+, MCAM+, COL1A1+, COL3A1+, MYLK+, BMP2+, CD93+, and CDK1+ cells.

Conclusions:

  • The optimized protocol provides a stable method for preparing meniscus single-cell suspensions.
  • This protocol is suitable for high-throughput scRNA-seq using platforms like 10x Genomics.
  • The optimized method enhances the quality and quantity of cells for molecular analysis.