Cells (May 2023)

Evaluating Differentiation Status of Mesenchymal Stem Cells by Label-Free Microscopy System and Machine Learning

  • Yawei Kong,
  • Jianpeng Ao,
  • Qiushu Chen,
  • Wenhua Su,
  • Yinping Zhao,
  • Yiyan Fei,
  • Jiong Ma,
  • Minbiao Ji,
  • Lan Mi

DOI
https://doi.org/10.3390/cells12111524
Journal volume & issue
Vol. 12, no. 11
p. 1524

Abstract

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Mesenchymal stem cells (MSCs) play a crucial role in tissue engineering, as their differentiation status directly affects the quality of the final cultured tissue, which is critical to the success of transplantation therapy. Furthermore, the precise control of MSC differentiation is essential for stem cell therapy in clinical settings, as low-purity stem cells can lead to tumorigenic problems. Therefore, to address the heterogeneity of MSCs during their differentiation into adipogenic or osteogenic lineages, numerous label-free microscopic images were acquired using fluorescence lifetime imaging microscopy (FLIM) and stimulated Raman scattering (SRS), and an automated evaluation model for the differentiation status of MSCs was built based on the K-means machine learning algorithm. The model is capable of highly sensitive analysis of individual cell differentiation status, so it has great potential for stem cell differentiation research.

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