Mycobacterium tuberculosis typing using Allele-specific oligonucleotide multiplex PCR (ASO-PCR) method

Curr Microbiol. 2021 Dec;78(12):4009-4013. doi: 10.1007/s00284-021-02659-7. Epub 2021 Sep 27.

Abstract

Mycobacterium tuberculosis (M. tuberculosis) genotyping provides valuable information related to the origin and the evolution of the isolates. This study aimed to evaluate the applicability of single-nucleotide polymorphisms (SNPs) technique for lineages identification of M. tuberculosis and compare it with mycobacterial interspersed repetitive units-variable number of tandem repeats (MIRU-VNTR) method. The lineages of 162 clinically isolates were evaluated using six pair primers by Multiplex-PCR based on SNPs. Among 162 isolates, 70 (43.2%) isolates were lineage 4, following that 62 (38.3%) and 22 (13.6%) isolates were lineage 3 and 2, respectively. The method could not type 8 (4.9%) isolates. Moreover, we could identify 71 out of 79 unknown isolates resulted from the MIRU-VNTR method. The results showed that the SNP typing method has the potential to determine the lineages of M. tuberculosis as a rapid laboratory screening test.

MeSH terms

  • Alleles
  • Bacterial Typing Techniques
  • Genotype
  • Minisatellite Repeats
  • Multiplex Polymerase Chain Reaction
  • Mycobacterium tuberculosis* / genetics
  • Oligonucleotides

Substances

  • Oligonucleotides