Kolorektal Kanser Teşhisinde Moleküler Genetik Testler

Yazarlar

Ruşen Avşar

Özet

Tüm hastalıklarda olduğu gibi kolorektal kanserde de tedavi başarısı açısından erken tanı hayati öneme sahiptir. Kolorektal kanser tanısında ve risk değerlendirmesinde genetik testler son derece önemlidir. Genetik testler özellikle ailesel yatkınlığı belirlemek suretiyle yüksek riskli grupların erken tarama programlarına dahil edilmelerini sağlar. Özellikle de kolorektal kanser riskini büyük oranda artıran ailesel adenomatös polipozis (FAP) ve Lynch sendromu gibi genetik sendromların genetik testler yoluyla teşhis edilmesi kolorektal kanser açısından riskli bireylerin saptanmasında büyük katkı sağlamaktadır. Genetik testler yoluyla hastalık erken evrelerde tespit edilebildiğinde tedavi stratejilerinin de en uygun şekilde planlanmasında önemlidir. Genetik test sonuçları aynı zamanda tedaviye yanıt ve prognozu etkilemekte olan biyobelirteçlerin belirlenmesinde de kullanıldığında bu testlerin kolorektal kanser tanısında kullanılması hastalığın tedavisinde ilerleme imkanı sağlamaktadır. Bu çalışmada kolorektal kanser tanısında kullanılan genetik testler ve bunların önemi incelenmiştir. Çalışma derleme tarzında olup konuyla ilgili yapılmış olan çalışmalar sistematik olarak gözden geçirilmiştir.

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