Abstract

Acute myeloid leukemia is a type of clonal hematopoietic stem cell disorder displaying different genetic abnormalities. The critical balance between the self-renewal and differentiation of leukemia stem cells are regulated by various genes and signaling pathways that are regulated by these genes. Wnt/ β-catenin signaling pathway controls the self-renewal of hematopoietic stem cells by the regulation of β-catenin. Akirin-2 is an evolutionarily conserved nuclear protein which is thought to play important roles in immunity, NFκB and Wnt/β-catenin signaling pathways. In this study, expression of Akirin-2 gene was investigated in the CD34+ hematopoietic stem cells of patients with high β-catenin gene expression. Our results showed that the expression level of Akirin-2 gene was significantly higher in CD34+ hematopoietic stem cells of patients compared to healthy subjects and Akirin-2 gene could have an important role in AML pathogenesis

Keywords

• AML, Akirin2, β-catenin

Akut miyeloid lösemide akirin2 geninin ifadesi

Abstract

Akut miyeloid lösemi (AML), farklı genetik anomaliler gösteren bir grup klonal hematopoetik kök hücre bozukluğudur. Lösemik kök hücrelerin kendini yenileme ve farklılaşmaları arasındaki hassas dengeyi, çeşitli genler ve bu genlerin düzenlediği sinyal yolakları kontrol etmektedir. Wnt/β-katenin sinyal yolağı, β-kateninin regülasyonu aracılığıyla hematopoetik kök hücrelerin kendilerini yenilemelerini kontrol etmektedir. Akirin2 proteini ise, immünite, NFκB ve Wnt/β-katenin sinyal yolaklarında çok önemli rolleri olduğu düşünülen yüksek derecede korunmuşluk gösteren bir proteindir. Bu çalışmada β-katenin gen ekspresyonu yüksek olan AML hastalarının CD34+ hematopoetik kök hücrelerinde Akirin2 geninin ifadesi araştırılmıştır. Sonuç olarak Akirin2 gen ifadesinin AML hastalarının CD34+ hematopoetik kök hücrelerinde sağlıklı bireylere göre anlamlı derecede artmış olduğu tespit edilmiş ve Akirin2 geninin AML patogenezinde önemli rollerinin olabileceğine dair ilk veriler elde edilmiştir

Keywords

• AML, Akirin2, β-katenin

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