Multiplex High-Throughput Targeted Proteomic Assay To Identify Induced Pluripotent Stem Cells

Area of Science:

• Biotechnology
• Stem Cell Biology
• Mass Spectrometry

Background:

• Induced pluripotent stem cells (iPSCs) are valuable for regenerative medicine, disease modeling, and drug screening.
• Current methods for assessing pluripotency are time-consuming, costly, and low-throughput, limiting iPSC applications.
• Efficient identification of high-quality iPSC clones is crucial for reliable research outcomes.

Purpose of the Study:

• To develop a rapid, cost-effective, and high-throughput assay for distinguishing pluripotent from nonpluripotent cells.
• To enable accurate classification of iPSC clones for research and clinical applications.
• To overcome the limitations of conventional genomic assays for pluripotency assessment.

Main Methods:

• A novel multiplexed, peptide-based multiple reaction monitoring mass spectrometry (MRM-MS) assay was developed.
• The assay identifies and quantifies multiple core transcription factors and pluripotency markers.
• High-throughput classification of cells as pluripotent or nonpluripotent was achieved.

Main Results:

• The MRM-MS assay provides sensitive and accurate identification and absolute quantitation of pluripotency markers.
• Classification into pluripotent or nonpluripotent cell populations was achieved in just 7 minutes.
• The assay demonstrated superior cost-effectiveness compared to standard genomic approaches.

Conclusions:

• This novel MRM-MS assay offers a significantly faster and more economical alternative for assessing cell pluripotency.
• The high-throughput nature of the assay facilitates the selection of competent iPSC clones for downstream applications.
• This method has the potential to accelerate research in regenerative medicine, disease modeling, and drug discovery using iPSCs.