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    Role of MIF-173G/C and Mbl2 Codon 54A/B Variants in the Risk of Multiple Myeloma: An Association Study
    (Bentham Science Publ Ltd, 2021) Pehlivan, Mustafa; Nursal, Ayse Feyda; Gundes, Ilknur; Oyaci, Yasemin; Kivanc, Demet; Pehlivan, Sacide
    Background: Multiple myeloma (MM) is a malignant disease manifested by the clonal proliferation of atypical plasma cells. Macrophage inhibitory factor (MIF) is one of the pleiotropic regulators in various biological and cellular processes. Mannose-binding lectin (MBL) is a crucial protein involved in the lectin pathway of the immune system. Objective: We aimed to assess whether variants of MIF and MBL2 genes are associated with MM among a Turkish population. Methods: We analyzed the MIF-173G/C (rs755622) and MBL2 codon 54A/B (rs1800450) variants in 200 patients with MM and 200 healthy control subjects using a polymerase chain reaction (PCR) followed by restriction endonuclease digestion. There was also an evaluation of the patients undergoing autologous stem-cell transplantation (ASCT) for these variants. Results: AA and BB genotypes of MBL2 codon 54A/B increased in the patients as compared to the controls (p=0.008, p=0.001, respectively). The subjects carrying AA and BB genotypes of MBL2 were at high risk of development of susceptibility to MM by 7.377 and 8.812 times, respectively. The distribution of MBL2 codon 54A/B alleles was similar between the groups (p>0.05). There was no statistical difference between the patients and controls in the genotype and allele frequencies of the MIF173G/C variant (p>0.05). The patients undergoing ASCT, MBL2 codon 54A/B AA and BB genotypes also showed association with increased risk for MM (p=0.004, p=0.001, respectively). Conclusion: As far as we know, this is the first report of the study on an association between these variants and MM in our population. Our results indicate that the MBL2 codon 54A/B variant may be associated with susceptibility to MM.