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Mutations in Fanconi anemia genes and the risk of esophageal cancer. | LitMetric

AI Article Synopsis

  • * Researchers sequenced 12 Fanconi anemia genes in the DNA of 190 Turkmen ESCC patients and discovered three specific mutations linked to a strong familial history of the disease.
  • * The study also found a significant association between homozygous mutations in the FANCA gene and an increased risk of ESCC, suggesting that mutations in Fanconi anemia genes contribute to the heightened incidence in this population.

Article Abstract

The incidence of esophageal squamous cell carcinoma (ESCC) is very high in northeastern Iran. Previously, we reported a strong familial component of ESCC among Turkmens, who constitute approximately one-half of the population of this region. We hypothesized that the genes which cause Fanconi anemia might be candidate genes for ESCC. We sequenced the entire coding regions of 12 Fanconi anemia genes in the germline DNA of 190 Turkmen cases of ESCC. We identified three heterozygous insertion/deletion mutations: one in FANCD2 (p.Val1233del), one in FANCE (p.Val311SerfsX2), and one in FANCL (p.Thr367AsnfsX13). All three patients had a strong family history of ESCC. In addition, four patients (out of 746 tested) were homozygous for the FANCA p.Ser858Arg mutation, compared to none of 1,373 matched controls (OR = 16.7, 95% CI = 6.2-44.2, P = 0.01). The p. Lys3326X mutation in BRCA2 (also known as Fanconi anemia gene FANCD1) was present in 27 of 746 ESCC cases and in 16 of 1,373 controls (OR = 3.38, 95% CI = 1.97-6.91, P = 0.0002). In summary, both heterozygous and homozygous mutations in several Fanconi anemia-predisposing genes are associated with an increased risk of ESCC in Iran.

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Source
http://dx.doi.org/10.1007/s00439-011-0951-7DOI Listing

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