Zoledronik asit uygulamasının meme kanseri hücre hattı (MCF 7) kanser kök hücrelerinin üzerine otofaji gen seviyesindeki etkilerinin araştırılması

Amaç: Zoledronik asit (ZA) uygulanmış meme kanser kök hücrelerinde (KKH), kanser kök hücresi ve otofaji ile ilişkili gen ekspresyonlarındaki farklılıkları incelemek. Gereç ve Yöntem: CD44yüksek/CD24yüksek yüzey belirteçleri pozitif olan MCF-7 meme kanseri hücre hattından KKH’ler akış sitometri metodu ile izole edilmiştir. ZA tedavisi uygulanmış ve uygulanmamış olan KKH gruplarının toplam RNA izolasyonu için cDNA sentezlenmiştir. Son olarak 41 adet otofaji için başlıca ilişkili olabilecek genlerin ekspresyon seviyeleri qRT-PCR analizi ile incelenmiştir. Bulgular: ZA tedavisi uygulanan grup tedavi uygulanmayan grup ile karşılaştırıldığında TGM2, TNF, HSPA8 genlerinin azalmış regüle olduğu ve HSP90AA1 geninin artmış regüle olduğu görülmüştür. Sonuç: Otofaji ile ilişkili genlerin ekspresyon profillerinde ZA tedavisi uygulanan ve uygulanmayan gruplar arasında anlamlı farklar bulunmuştur. Bu bulgular, KKH’lerine karşı hedef olabilecek daha etkili tedavi ajanları geliştirilebilmesi için önemli katkılar sağlayabilir.

Investigation of the effects of zoledronic acid in breast cancer stem cell line (MCF 7) for autophagic gene level

Aim: In this study we examined differences in the expression of genes associated with autophagy and CSCs for the treatment ZA applied via taking breast cancer stem cells as models. Materials and Methods: CSCs with CD44high/CD24high surface markers have been isolated from the MCF-7 breast cancer cell line with flow cytometry methods. cDNA was synthesized for ZA treatment applied and not applied CSC group with total RNA isolation. Then, 41 essential autophagy-related gene expression levels were analyzed by qRTPCR array analysis. Results: When ZA treatment administrated group compared with non-treatment group, downregulation of TGM2, TNF, HSPA8 and upregulation of HSP90AA1 was detected. Conclusion: There are differences of expression profiles of genes related to autophagy between ZA treated and non-ZA tread group. These findings may provide important information towards us to target CSCs to develop more effective treatments.

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Ege Tıp Dergisi-Cover
  • ISSN: 1016-9113
  • Yayın Aralığı: Yılda 4 Sayı
  • Başlangıç: 1962
  • Yayıncı: Ersin HACIOĞLU
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