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Updated: Aug 1, 2026
Optimized PCR-based Detection of Mycoplasma
Published on: June 20, 2011
A rapid and sensitive method for the detection of mycoplasmas in infected cell cultures using 6-methyl purine
Abstract:
6MPDR causes the death of cells lightly infected with mycoplasmas. This is brought about by the action of the mycoplasmal enzyme adenosine phosphorylase which converts 6MPDR to highly toxic metabolites. If the medium conditions are adjusted to favour the growth of mycoplasmas by the addition of pig serum to the medium, infections as low as 1 mycoplasma per 200,000 cells can be detected within 7 days. This finding enables mycoplasma tests to be carried out rapidly and reliably by untrained personnel.
Insights
A novel method detects low mycoplasma contamination using 6-methylpurine deoxynucleoside (6MPDR) and pig serum. This technique leverages mycoplasma
Area of Science:
- Cell biology
- Microbiology
- Biochemistry
Background:
- Mycoplasma contamination is a significant issue in cell cultures.
- Accurate and rapid detection methods are crucial for research integrity.
Purpose of the Study:
- To develop a sensitive and reliable method for detecting low levels of mycoplasma contamination.
- To utilize the enzymatic activity of mycoplasmas for detection.
Main Methods:
- Utilizing 6-methylpurine deoxynucleoside (6MPDR) as a substrate.
- Adjusting medium conditions with pig serum to enhance mycoplasma growth.
- Measuring cell death induced by toxic metabolites.
Main Results:
- 6MPDR is converted to toxic metabolites by mycoplasma adenosine phosphorylase.
- Low-level infections (1 mycoplasma per 200,000 cells) are detectable within 7 days.
- The method demonstrates high sensitivity and reliability.
Conclusions:
- This method offers a rapid and reliable approach for mycoplasma testing.
- Untrained personnel can perform these tests effectively.
- The findings have implications for routine cell culture quality control.
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