Association of CD209 and CD209L polymorphisms with tuberculosis infection in a Northeastern Brazilian population

Ronaldo Celerino Da Silva, Ludovica Segat, Heidi Lacerda Alves Da Cruz, Haiana Charifker Schindler, Lilian Maria Lapa Montenegro, Sergio Crovella, Rafael Lima Guimarães

Research output: Contribution to journalArticle

Abstract

Tuberculosis (TB) caused by Mycobacterium tuberculosis, is major cause of morbidity and mortality worldwide. So far, many candidate genes have been investigated for their possible association with TB. Dendritic cell-specific intercellular adhesion molecule 3 (ICAM-3) grabbing non-integrin (DC-SIGN) and Liver/lymph node-specific intercellular adhesion molecule-grabbing non-integrin (L-SIGN), encoded by CD209 and CD209L genes respectively, are known for binding to M. tuberculosis on human dendritic cells and macrophages. We screened 4 single nucleotide polymorphisms (SNPs) in the promoter region of CD209, namely -939G>A (rs735240), -871A>G (rs735239), -336A>G (rs4804803) and -139G>A (rs2287886) and tandem repeat polymorphisms in exon 4 of CD209 and CD209L genes looking for association with TB in a Northeastern Brazilian population (295 subjects, 131 TB patients and 164 healthy controls). The -139G>A and -939G>A SNPs were associated with susceptibility to TB, and in particular with pulmonary and extra-pulmonary forms respectively. The -871A>G and -336A>G SNPs were associated, the first with protection to both pulmonary and extra-pulmonary TB, the latter only with the pulmonary form. An association between GGAG haplotype and protection to TB infection was also found. Also tandem repeat polymorphism in CD209L exon 4 was associated with TB infection. This study provides evidence of an association between CD209 and CD209L polymorphisms and TB development in a Brazilian population, suggesting that variations in these genes may influence the protection and susceptibility to infection caused by M. tuberculosis.

Original languageEnglish
Pages (from-to)5449-5457
Number of pages9
JournalMolecular Biology Reports
Volume41
Issue number8
DOIs
Publication statusPublished - 2014

Keywords

  • CD209
  • CD209L
  • Polymorphisms
  • Tuberculosis

ASJC Scopus subject areas

  • Genetics
  • Molecular Biology
  • Medicine(all)

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