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. 2022 Mar 29;13(4):609.
doi: 10.3390/genes13040609.

SNPs in Genes Related to DNA Damage Repair in Mycobacterium Tuberculosis: Their Association with Type 2 Diabetes Mellitus and Drug Resistance

Damián E Pérez-Martínez  1 , Gustavo A Bermúdez-Hernández  1 , Carlos F Madrazo-Moya  2 , Irving Cancino-Muñoz  2   3 , Hilda Montero  4 , Cuauhtemoc Licona-Cassani  5   6   7 , Raquel Muñiz-Salazar  6   8 , Iñaki Comas  2   3 , Roberto Zenteno-Cuevas  4   6
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SNPs in Genes Related to DNA Damage Repair in Mycobacterium Tuberculosis: Their Association with Type 2 Diabetes Mellitus and Drug Resistance

Damián E Pérez-Martínez et al. Genes (Basel). .

Abstract

Genes related to DNA damage repair in Mycobacterium tuberculosis are critical for survival and genomic diversification. The aim of this study is to compare the presence of SNPs in genes related to DNA damage repair in sensitive and drug-resistant M. tuberculosis genomes isolated from patients with and without type 2 diabetes mellitus (T2DM). We collected 399 M. tuberculosis L4 genomes from several public repositories; 224 genomes belonging to hosts without T2DM, of which 123 (54.9%) had drug sensitive tuberculosis (TB) and 101 (45.1%) had drug resistance (DR)-TB; and 175 genomes from individuals with T2DM, of which 100 (57.1%) had drug sensitive TB and 75 (42.9%) had DR-TB. The presence of SNPs in the coding regions of 65 genes related to DNA damage repair was analyzed and compared with the resistance profile and the presence/absence of T2DM in the host. The results show the phylogenetic relationships of some SNPS and L4 sub-lineages, as well as differences in the distribution of SNPs present in DNA damage repair-related genes related to the resistance profile of the infecting strain and the presence of T2DM in the host. Given these differences, it was possible to generate two discriminant functions to distinguish between drug sensitive and drug resistant genomes, as well as patients with or without T2DM.

Keywords: DNA repair; diabetes mellitus; resistance; tuberculosis.

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Conflict of interest statement

The authors declare that they have no conflict of interest.

Figures

Figure 1
Figure 1
Dendrogram generated using 534 non-synonymous SNPs in genes related to DNA damage repair.
Figure 2
Figure 2
Sub-lineage clustering using 16 non-synonymous SNPs in 13 genes related to DNA damage repair.
See this image and copyright information in PMC

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