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Table 2 Molecular methods used for identifying mutations in antimalarial drug resistance genes

From: Rapid and supersensitive allele detection of Plasmodium falciparum chloroquine resistance via a Pyrococcus furiosus argonaute-triggered dual-signal biosensing platform

Classification

Method

LOD

Thermocycler

Advantages

Disadvantages

References

PCR-based assays

mPCR

20 fg/μL

Yes

High accuracy, high sensitivity, time savings, and economic advantages

The quality of the probe is significantly influenced by the base sequence near the detection site

[1]

HRM

0.3 ng/μl

Yes

Simple, robust, low-cost

Amplicons with sizes greater than 300 bps may produce more errors

[2,3,4]

AS-PCR

50 parasites/μL

Yes

Most common; easiest

Nonspecific amplification often occurs

[5, 6]

RFLP

15 parasites/μl

Yes

Rapid, simple, convenient, and inexpensive

Not suitable for large-scale testing

[7,8,9]

Isothermal tests

RPA

3.17 ng/μl

No

No thermocycler required rapid

Susceptible to laboratory contamination; sensitivity not as good as qPCR

[10, 11]

LFA

3.38 × 105 copies/μL

No

Easy to interpret test results

Susceptible to laboratory contamination

[5, 6, 11]

RPA-PfAgo

3%

No

No thermocycler needed; rapid; simple to understand the results of the test

The RPA amplification products need to be purified by the purification kit to remove the proteins involved in the RPA reaction

 

Sequencing methods

Sanger sequencing

20%

Yes

Provide thorough haplotype information

Time-consuming and extensive data analysis requires costly equipment and well-trained technicians

[12]

Illumina MiSeq

5%

Yes

Provide thorough haplotype information; faster than Sanger sequencing

Requires expensive equipment and well-trained technicians; and extensive data analysis

[13]

  1. LOD means limit of detection