Esra BAL, Asuman DEVECİ ÖZKAN, Zeynep BETTS

RUTİNİN EPİTELYAL VE MEZENKİMAL GEÇİŞ ÜZERİNE OLAN ETKİSİNİN PROSTAT KANSERİ HÜCRELERİNDE BELİRLENMESİ

Amaç: Prostat kanseri tedavisinde yaşanan zorluklar, kemoterapi nedeniyle görülen yan etkilerin fazlalığı alternatif tedavi stratejileri arayışını gündeme getirmiştir. Son yıllarda yapılan araştırmalarda Rutin (RUT)’in kanser hücreleri üzerinde anti-kanser etki gösterdiği bilinmektedir. Bu nedenle çalışmamızda RUT’un prostat kanseri hücrelerinde epitelyal mezenkimal geçiş (EMT) üzerindeki etkilerinin ilk defa belirlenmesi amaçlanmıştır. Yöntem: Prostat kanseri hücrelerinde (PC-3) RUT’un antikanser aktivitesi WST-1, Annexin V ELISA, DAPI boyama ve Akridin Oranj (AO) boyama ile belirlenerek, RUT’un anti-kanser ve anti-metastatik özellikleri Scratch (Çizik) Assay testi ile değerlendirildi. Bax, Bcl-2, Snail, Twist, Vimentin ve E-kaderin genlerinin mRNA ifade düzeyi RT-PCR analizi ile belirlendi. Bulgular: PC-3 hücrelerine, farklı konstrasyonlarda (500, 750, 1000, 1500 µM) ve farklı zamanlarda (24 ve 48 saat) RUT uygulandı. Canlılık oranlarının doza ve zamana bağlı olarak artan RUT konsantrasyonuna bağlı olarak azaldığı gözlendi (p<0,01). Ayrıca artan RUT konsantrasyonuna bağlı olarak Annexin V proteinin azaldığı ve apoptotik hücrelerin arttığı belirlendi (p<0,01). Özellikle 750 ve 1000 µM RUT konsantrasyonlarında göç eden hücre sayısında azalma olduğu ortaya kondu. RT-PCR analizi sonucu elde edilen verilerde 1500 µM RUT muamelesi sonrası E-Kaderin mRNA seviyesinde 14,22-kat olarak belirgin bir anlamlı artış olduğu belirlendi (p<0,01). Diğer yandan EMT sürecinde yer aldığı bilinen Snail, Twist ve Vimentin mRNA ifade düzeyinin artan RUT konsantrasyonuna bağlı olarak azaldığı ortaya konuldu (p<0,01). Sonuç: RUT’un epitelden mezenkimal geçişi engelleme ve apoptozu teşvik edici potansiyelinin varlığı ortaya konulmuştur. Ayrıca RUT’un EMT üzerine olan etkilerinin daha ileri moleküler analizler ve in vivo olarak araştırılması önerilmektedir.

Anahtar Kelimeler:

Prostat kanseri, rutin, epitelyal mezenkimal geçiş, apoptoz

DETERMINATION OF THE EFFECT OF RUTIN ON EPITHHELIAL AND MESENCHIMAL TRANSITION IN PROSTATE CANCER CELLS

Objective: The difficulties experienced in the treatment of prostate cancer and the excess of side effects due to chemotherapy have brought the search for alternative treatment strategies. In recent studies, it is known that Rutin (RUT) has an anti-cancer effect on cancer cells. Our study aimed to determine the effects of RUT on epithelial-mesenchymal transition (EMT) in prostate cancer cells, for the first time. Methods: The anticancer activity of RUT in prostate cancer cells (PC-3) was determined by WST-1, Annexin V ELISA, DAPI and Acridine Orange staining, and the anti-cancer and anti-metastatic properties of RUT were evaluated with the Scratch Assay test. The mRNA expression level of Bax, Bcl-2, Snail, Twist, Vimentin and E-cadherin genes was determined by RT-PCR. Results: PC-3 cells were treated with RUT (500, 750, 1000, 1500 µM) for 24 and 48 hours. The viability rates decreased with increasing RUT concentration depending on dose and time (p<0.01). Annexin V protein decreased, and apoptotic cells increased depending on the increasing RUT concentration (p<0.01). There was a decrease in the number of migrating cells, especially at 750 and 1000 µM RUT concentrations. There was a significant increase (14.22-fold) in E-cadherin mRNA level after 1500 µM RUT treatment (p<0.01). On the other hand, the mRNA expression level of Snail, Twist and Vimentin, decreased at higher RUT concentrations (p<0.01). Conclusion: The existence of RUT's potential to inhibit epithelial-mesenchymal transition and promote apoptosis has been demonstrated. It is also recommended to investigate the effects of RUT on EMT in vivo.

Keywords:

Prostate cancer, rutin, epithelial mesenchymal transition, apoptosis,

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