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  Citation Number 1
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Zoledronik Asidin Meme Kanseri Alt Tiplerinde Terapötik Etkisinin Değerlendirilmesi
2019
Journal:  
Sakarya Tıp Dergisi
Author:  
Abstract:

Amaç: Meme kanseri kadınlardasık görülen ve farklı alt tiplere ayrılan heterojen bir kanser türüdür. Bu nedenle, meme kanseri alt tiplerine özgü tedavi yaklaşımları dikkat çekmektedir. Mevcut çalışmada, kemik metastazı görülen kanser tiplerinin tedavisinde klinikte kullanılan ve anti-proliferatif, ve anti-metastatik etkiye sahip olduğu bilinen bir bifosfonat inhibitörü zoledronik asitin (ZOL)’ün, iki farklı meme kanseri alt tipinde [MCF-7 (ER+, PR+, HER2-) ve MDA-MB-231 (ER-, PR-, HER2-)]  ve HUVEC kontrol hücrelerinde terapötik etkisinin araştırılması amaçlanmıştır. Gereç ve Yöntem: ZOL’ün (10-100 µM) 24 ve 48 saat boyunca sitotoksik ve apoptotik etkisi WST-1, Annexin V ve hücre siklusu analizleri ile belirlenmiştir. Ayrıca ZOL’ün, hücrelerde ve nukleusda neden olduğu morfolojik değişimler sırasıyla akridin oranj (AO) ve DAPI boyaması ile görüntülenmiştir. Bulgular: ZOL’ün MCF-7 hücrelerine göre, MDA-MB-231 hücrelerinde daha fazla anti-proliferatif etkiye ve erken ve geç apoptotik ölüme neden olduğu analiz edilmiştir (p<0.05). Özellikle 50 ve100 µM ZOL uygulanan hücrelerde G0/G1 fazında hücre miktarının anlamlı bir şekilde arttığı saptanmıştır (p<0.05). Bunun yanı sıra, ZOL uygulanan MCF-7 ve MDA-MB-231 hücrelerinde, hücre membran bütünlüğünde bozulma ve kromatin yoğunlaşması gözlemlenmiştir. Ancak, yüksek konsantrasyonlarda ZOL’ün HUVEC hücrelerinde toksik etkiye neden olduğu belirlenmiştir. Sonuç: Sonuç olarak, ZOL’ün farklı meme kanseri alt tiplerinde potansiyel terapötik etkiye sahip olduğu belirlenmekle birlikte, triple negatif meme kanseri (MDA-MB-231) hücrelerinde, hormon duyarlı (MCF-7) hücrelere göre daha fazla sitotoksik etkiye ve apoptotik ölüme neden olduğu tespit edilmiştir. Ancak, ZOL’ün meme kanseri alt tipine bağlı olarak değişen terapötik etkisine neden olan moleküler mekanizmaların ve ideal uygulama protokolünün belirlenmesine yönelik detaylı çalışmalara ihtiyaç bulunmaktadır.

Keywords:

Evaluation of Zoledronic Acid Therapeutic Effects on Subtypes of Breast Cancer
2019
Author:  
Abstract:

Purpose: Breast cancer is a heterogeneous type of cancer that is common in women and is divided into different subtypes. Therefore, the attention is attracted to the treatment approaches specific to the subtypes of breast cancer. The current study, which is used in the clinic in the treatment of types of cancer with bone metastasis and is known to have an anti-proliferative, and anti-metastatic effect, a bifosphonate inhibitor zoledronic acid (ZOL) is intended to study the therapeutic effect of two different subtypes of breast cancer [MCF-7 (ER+, PR+, HER2-) and MDA-MB-231 (ER-, PR-, HER2-)] and HUVEC control cells. The cytotoxic and apoptotic effect of ZOL (10-100 μM) for 24 and 48 hours is determined by WST-1, Annexin V and cell cycle analysis. Moreover, the morphological changes caused by ZOL in cells and nucleus are shown by acrylic proportion (AO) and DAPI painting, respectively. Results: According to MCF-7 cells, ZOL has been analyzed to cause more anti-proliferative effects and early and late apoptotic death in MDA-MB-231 cells (p<0.05). In particular, 50 and 100 μM ZOL were found to have significantly increased cell quantity in the G0/G1 phase (p<0.05). In addition, in the MCF-7 and MDA-MB-231 cells applied to ZOL, deterioration of cell membrane integrity and concentration of chromatin has been observed. However, in high concentrations, ZOL has been found to cause toxic effects in HUVEC cells. Result: As a result, ZOL has been determined to have potential therapeutic effects in different subtypes of breast cancer, but in triple negative breast cancer cells (MDA-MB-231) it has been found to cause more cytotoxic effects and apoptotic deaths than hormone-sensitive (MCF-7) cells. However, detailed studies are needed to determine the molecular mechanisms and the ideal application protocol that cause the therapeutic effect variing depending on the subtype of breast cancer.

Keywords:

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Sakarya Tıp Dergisi

Field :   Sağlık Bilimleri

Journal Type :   Ulusal

Metrics
Article : 951
Cite : 1.174
2023 Impact : 0.022
Sakarya Tıp Dergisi