AI Article Synopsis

  • This study explores cutaneous tuberculosis, focusing on its various types and the unclear causes behind the disease.
  • Researchers analyzed 58 isolated strains over 20 years, looking into their genomic traits, including lineage, drug resistance, and mutations linked to infection sites.
  • Results revealed that while strains from skin and lung tuberculosis were genetically similar and showed lower drug resistance in skin cases, specific gene mutations correlated strongly with infection sites, indicating more research on these SNPs is needed.

Article Abstract

Objectives: Cutaneous tuberculosis with various manifestations can be divided into several clinical types according to the host's immune status and infective route. However, the etiological factors of this disease remain unclear. The objective of this study is to investigate the pathogens associated with the occurrence and different types of cutaneous tuberculosis.

Methods: 58 strains isolated from cutaneous tuberculosis over the last 20 years were sequenced and analyzed for genomic characteristics including lineage distribution, drug-resistance mutations, and mutations potentially associated with different sites of infection.

Results: The strains from four major types of cutaneous tuberculosis and pulmonary tuberculosis shared similar genotypes and genomic composition. The strains isolated from cutaneous tuberculosis had a lower rate of drug resistance. Phylogenic analysis showed cutaneous tuberculosis and pulmonary tuberculosis isolates scattered on the three. Several SNPs in metabolism related genes exhibited a strong correlation with different infection sites.

Conclusions: The different infection sites of TB may barely be affected by large genomic changes in isolates, but the significant difference in SNPs of drug resistance gene and metabolism-related genes still deserves more attention.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10230547PMC
http://dx.doi.org/10.3389/fmicb.2023.1165916DOI Listing

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