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Updated: Jul 20, 2026
Optimized PCR-based Detection of Mycoplasma
Published on: June 20, 2011
Application of LAMP coupled with NALF for precise detection of mycoplasma pneumoniae
1Changzhou Children's Hospital Affiliated to Nantong University, Changzhou, Jiangsu Province, 213003, China.
Abstract:
Mycoplasma pneumoniae (MP),as the most commonly infected respiratory pathogen in community-acquired pneumonia in preschool children,has becoming a prominent factor affecting children's respiratory health.Currently, there is a lack of easy, rapid, and accurate laboratory testing program for MP infection, which causes comparatively difficulty for clinical diagnostic.Here,we utilize loop-mediated isothermal amplification (LAMP) to amplify and characterize the P1 gene of MP, combined with nucleic acid lateral flow (NALF) for fast and visuallized detection of MP.Furthermore, we evaluated and analyzed the sensitivity, specificity and methodological consistency of the method.The results showed that the limit of detection(LoD) of MP-LAMP-NALF assay was down to 100 copys per reaction and there was no cross-reactivity with other pathogens infected the respiratory system. The concordance rate between MP-LAMP-NALF assay with quantitative real-time PCR was 94.3 %,which exhibiting excellent testing performance.We make superior the turnaround time of the MP-LAMP-NALF assay, which takes only about 50 min. In addition, there is no need for precision instruments and no restriction on the laboratory site.Collectively, LAMP-NALF assay targeting the P1 gene for Mycoplasma pneumoniae detection was a easy, precise and visual test which could be widely applied in outpatient and emergency departments or primary hospitals.When further optimized, it could be used as "point-of-care testing" of pathogens or multiple testing for pathogens.
Insights
A new Mycoplasma pneumoniae (MP) test combines loop-mediated isothermal amplification (LAMP) and nucleic acid lateral flow (NALF) for rapid, visual detection. This MP-LAMP-NALF assay offers high accuracy and speed, improving diagnosis for children.
Area of Science:
- Microbiology
- Molecular Diagnostics
- Pediatric Infectious Diseases
Background:
- Mycoplasma pneumoniae (MP) is a leading cause of community-acquired pneumonia in children.
- Current diagnostic methods for MP infection lack speed, ease of use, and accuracy, hindering clinical diagnosis.
- There is a need for accessible and reliable laboratory testing for MP.
Purpose of the Study:
- To develop and evaluate a rapid, visual, and accurate diagnostic assay for Mycoplasma pneumoniae.
- To utilize loop-mediated isothermal amplification (LAMP) combined with nucleic acid lateral flow (NALF) for MP detection.
- To assess the sensitivity, specificity, and performance of the developed MP-LAMP-NALF assay.
Main Methods:
- Loop-mediated isothermal amplification (LAMP) was used to amplify the P1 gene of Mycoplasma pneumoniae.
- Nucleic acid lateral flow (NALF) was employed for visual detection of the amplified MP DNA.
- The MP-LAMP-NALF assay's limit of detection, specificity, and concordance with quantitative real-time PCR were evaluated.
Main Results:
- The MP-LAMP-NALF assay demonstrated a limit of detection as low as 100 copies per reaction.
- No cross-reactivity was observed with other common respiratory pathogens.
- The assay achieved a 94.3% concordance rate with quantitative real-time PCR, with a turnaround time of approximately 50 minutes.
Conclusions:
- The MP-LAMP-NALF assay is a simple, precise, and visual method for detecting Mycoplasma pneumoniae.
- This assay can be widely implemented in various clinical settings, including outpatient, emergency, and primary care facilities.
- Further optimization could enable its use as a point-of-care test for pathogen detection.
