High-throughput detection and multiplex identification of cell contaminations

Area of Science:

• Cell Biology
• Molecular Biology
• Biotechnology

Background:

• Cell culture contamination by viruses, Mycoplasma, or cross-contamination with other cell lines is a significant issue.
• Such contamination compromises laboratory safety and the integrity of scientific findings.
• Existing detection methods can be time-consuming and may not cover a broad range of contaminants.

Purpose of the Study:

• To develop and validate a novel, high-throughput method for detecting multiple cell culture contaminants simultaneously.
• To establish a robust assay capable of identifying a wide array of contamination markers.

Main Methods:

• Development of a Multiplex cell Contamination Test (McCT) utilizing multiplex PCR.
• Design of target-specific primers for amplifying contaminant DNA.
• Hybridization of amplified products (amplimers) to specific oligonucleotide probes for detection.

Main Results:

• The McCT assay can detect 37 different contamination markers in a single reaction.
• The test demonstrated high specificity, sensitivity, and robustness.
• The assay is capable of processing over 1000 cell lysates per week, enabling high-throughput analysis.

Conclusions:

• The novel Multiplex cell Contamination Test (McCT) is a powerful tool for assessing cell line purity.
• This high-throughput assay significantly enhances the ability to ensure the quality and safety of cell cultures.
• McCT provides a reliable solution for routine screening of cell line contaminants.