{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,24]],"date-time":"2026-08-24T15:26:15Z","timestamp":1787585175060,"version":"build-2736575974"},"reference-count":32,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2020,11,5]],"date-time":"2020-11-05T00:00:00Z","timestamp":1604534400000},"content-version":"vor","delay-in-days":309,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Ministry of High Education and Scientific Research of Tunisia"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["BioMed Research International"],"published-print":{"date-parts":[[2020,1]]},"abstract":"<jats:p>Pemphigus foliaceus (PF) is considered to be caused by the combined effects of susceptibility genes and environmental triggers. The polymorphisms of Toll\u2010like receptors (TLRs) genes have been associated with the risk of various autoimmune diseases. The aim of this study was to evaluate the potential association of <jats:italic>TLR2<\/jats:italic>\u2010<jats:italic>3<\/jats:italic>\u2010<jats:italic>4<\/jats:italic> and <jats:italic>7<\/jats:italic> gene polymorphisms with Tunisian PF. Fourteen polymorphisms were analyzed in 93 Tunisian PF patients compared to 193 matched healthy controls: rs5743703\u2010rs5743709 and (GT)<jats:sub>n<\/jats:sub> repeat (<jats:italic>TLR2<\/jats:italic>); rs5743305, rs3775294, and rs3775291 (<jats:italic>TLR3<\/jats:italic>), rs4986790 and rs4986791 (<jats:italic>TLR4<\/jats:italic>); and rs3853839 (<jats:italic>TLR7<\/jats:italic>). Our results showed that the genetic factors varied depending on the epidemiological feature stratification. In fact, in the whole population, no association with the susceptibility to PF was found. The TLR2 GT repeat seems to be closely associated with PF risk in patients originated from the endemic localities (group 3); the GT<jats:sub>18<\/jats:sub> allele and the heterozygous genotype GT<jats:sub>18<\/jats:sub>\/GT<jats:sub>19<\/jats:sub> seem to confer risk to endemic PF (<jats:italic>P<\/jats:italic> = 0.02; OR = 2.3 [1.1\u20104.9] and <jats:italic>P<\/jats:italic> = 0.0002, OR = 20 [2.5\u2010171], respectively). In contrast, the GT<jats:sub>23<\/jats:sub> repeat could be considered as protector allele (<jats:italic>P<\/jats:italic> = 0.02, OR = 0.2 [0.06\u20100.87]). Furthermore, medium GT alleles which induce high promoter activity were also significantly more frequent in patients versus short or long GT repeats (<jats:italic>P<\/jats:italic> = 0.0018 with OR = 3.26 [1.5\u20107]). On the other hand, the TLR3\u2010rs574305 AA genotype and A allele were significantly more frequent in patients whose age of the onset was above 35 years (group 2) (<jats:italic>P<\/jats:italic> = 0.038, OR = 1.78 and <jats:italic>P<\/jats:italic> = 0.009, OR = 3.92, respectively). Besides, the <jats:italic>TLR4<\/jats:italic>&gt;rs3775294 A allele was found to be protector only in patients with sporadic features (groups 2 and 4) (<jats:italic>P<\/jats:italic> = 0.03, OR = 0.57 [0.3\u20100.9] and <jats:italic>P<\/jats:italic> = 0.006, OR = 0.24 [0.08\u20100.74], respectively). No statistically significant difference was observed in the genotypic and allelic frequencies of <jats:italic>TLR-4<\/jats:italic> and <jats:italic>TLR-7<\/jats:italic> gene polymorphisms. The present data suggest that <jats:italic>TLR2<\/jats:italic>and TLR3 polymorphisms are significantly associated with increased susceptibility to PF in the Tunisian population.<\/jats:p>","DOI":"10.1155\/2020\/6541761","type":"journal-article","created":{"date-parts":[[2020,11,6]],"date-time":"2020-11-06T02:35:27Z","timestamp":1604630127000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Toll\u2010like\u2010Receptor Gene Polymorphisms in Tunisian Endemic Pemphigus 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