Evaluation of the Relationship between MTHFR C677T Single Nucleotide Polymorphism and Prostate Cancer in Hatay

Öz

MTHFR (Methylenetatrahydrofolate reductase) is one of the most important enzymes because of its function about folate metabolism and DNA synthesis pathways. The C677T single
nucleotide polymorphism in the gene encoding the enzyme, have been associated with many diseases including prostate cancer. We aimed to evaluate the association between the polymorphism and prostate cancer by comparing the results between patients and controls. Patients, who suffer from prostate cancer (n: 20) and healthy controls (n: 20) were included the study. First of all, DNA isolation was performed from the blood samples that are taken in hemogram tubes. After reproducing the region about relevant polymorphism by Polymerase Chain Reaction (PCR), it was cut by Restriction Fragment Length Polymorphism (RFLP) with suitable enzyme and viewed by Polyacrylamide gel electrophoresis (PAGE). When the results evaluated MTHFR C677T polymorphisms genotypes, the ratios were CC %60, CT %40; and CC %60 CT %35 TT %5 for patients and healthy controls respectively. As a result, it is found that the MTHFR 677TT genotype has protective effect for prostate cancer. 

Anahtar Kelimeler

• MTHFR C677T
• prostate cancer
• polymorphism

HATAY İLİ’NDE MTHFR C677T TEK NÜKLEOTİT POLİMORFİZMİ VE PROSTAT KANSERİ ARASINDAKİ İLİŞKİNİN DEĞERLENDİRİLMESİ

Öz

MTHFR (Metilentetrahidrofolatredüktaz), folat metabolizması ve DNA sentez yolağındaki kilit rolü sebebiyle en önemli enzimlerden biridir. Enzimi kodlayan gendeki C677T tek nükleotid polimorfizmi, prostat kanseri de dahil olmak üzere birçok hastalıkla ilişkilendirilmiştir. Çalışmanın amacı, ilgili polimorfizmin, prostat kanseri teşhisi konmuş hasta ve sağlıklı kontrol bireyler arasında kıyaslanarak, hastalık ile ilişkisinin değerlendirilmesidir. Çalışmaya, 20 prostat kanseri teşhisi konmuş hasta ve herhangi bir patolojisi saptanmamış 20 sağlıklı birey dahil edilmiştir. İlk olarak, bu bireylerden alınan kan örneklerinden DNA’ları izole edildi. İlgili polimorfizmin bulunduğu bölge Polimeraz Zincir Reaksiyonu (PCR) ile çoğaltıldıktan sonra, uygun restriksiyon enzimi aracılığıyla, Restriksiyon Parça Uzunluk Polimorfizmi (RFLP) yöntemi ile kesildi. Daha sonra Poliakrilamid Jel Elektroforezi tekniği ile örnekler yürütüldü ve jel görüntülenerek oluşan bantlar yorumlandı. Sonuçlar, MTHFR C677T polimorfizm genotipleri açısından değerlendirildiğinde, çalışmaya dâhil ettiğimiz hasta bireylerin %60’inde CC (homozigot normal), %40’inde CT (heterozigot mutant); sağlıklı bireylerin ise %60’ında CC, %35’inde CT ve %5’inde TT (homozigot mutant) genotipi olduğu tespit edilmiştir.
Sonuç olarak, MTHFR 677TT genotipinin prostat kanseri için koruyucu etki gösterdiği tespit edilmiştir.

Anahtar Kelimeler

• MTHFR C677T
• prostat kanseri
• polimorfizm

Kaynakça

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