Journals / Uluslararası Hematoloji-Onkoloji Dergisi / 2009 / Cilt: 19 - Sayı: 1

Dirençli MCF-7 hücre hatlarında yapısal olarak farklı antikanser ilaçlara karşı çapraz direnç gelişimi

Drug resistant MCF-7 cell lines also developed cross-resistance to structurally unrelated anticancer agents

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1–8
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The data presented here may provide an insight to assess response of breast tumors to anticancer drug combinations.

📌 3 Key Takeaways

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Objective & Hypothesis:The cells developing resistance to an applied drug may also present cross-resistance to other anticancer drugs which are not applied.
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Key Findings & Data:In this study, the development of cross-resistance in paclitaxel (MCF-7/Pac), docetaxel (MCF-7/Doc), vincristine (MCF-7/Vinc) and doxorubicin (MCF-7/Dox) resistant MCF-7 cells to selective anticancer drugs, tamoxifen and all trans-retinoic acid (ATRA) were investigated.
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Conclusion & Impact:The data presented here may provide an insight to assess response of breast tumors to anticancer drug combinations.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Vinkristin · Paklitaksel · Doksorubisin

Abstract

The cells developing resistance to an applied drug may also present cross-resistance to other anticancer drugs which are not applied. In this study, the development of cross-resistance in paclitaxel (MCF-7/Pac), docetaxel (MCF-7/Doc), vincristine (MCF-7/Vinc) and doxorubicin (MCF-7/Dox) resistant MCF-7 cells to selective anticancer drugs, tamoxifen and all trans-retinoic acid (ATRA) were investigated. Combined antiproliferative effects of these drugs in different combinations were also evaluated by checkerboard combination assay. MCF-7/Pac and MCF-7/Doc cells developed cross-resistance to vincristine (13- and 12-folds, respectively) and tamoxifen (3- and 2-folds, respectively). MCF-7/Dox cells developed cross-resistance to paclitaxel (109-fold), docetaxel (10-fold), tamoxifen (2-fold) and ATRA (3-fold). MCF-7/Vinc cells developed cross-resistance to paclitaxel (48-fold), doxorubicin (6-fold) and tamoxifen (2-fold). Combinations of paclitaxel and docetaxel with doxorubicin exerted synergic antiproliferative effect. Tamoxifen had synergic effect with doxorubicin and vincristine. ATRA had indifferent effect with paclitaxel, docetaxel and doxorubicin where it had antagonistic effect with vincristine. The data presented here may provide an insight to assess response of breast tumors to anticancer drug combinations.

Özet

Kemoterapi sırasında uygulanan belli bir ilaca direnç geliştiren hücreler, diğer ilaçlara da çapraz direnç geliştirebilmektedir. Bu çalışmada amaç, paklitaksel (MCF-7/Pac), dosetaksel (MCF-7/Doc), vinkristin (MCF-7/Vinc) ve doksorubisine (MCF-7/Dox) dirençli MCF-7 hücre hatlarında paklitaksel, dosetaksel, vinkristin, doksorubisin, tamoksifen ve all-trans retinoik asit çapraz direnç gelişiminin ve dirençli hücrlerde farklı ilaç kombinasyonlarının antiproliferatif etkilerinin “checkerboard combination assay” yöntemi ile incelenmesidir. Sonuçlar değerlendirildiğinde, MCF-7/Pac ve MCF-7/Doc hücrelerinde vinkristin (sırasıyla 13 ve 12 kat) ve tamoksifene (sırasıyla 3 ve 2 kat) karşı çapraz direnç geliştiği görülmüştür. Bunun yanısıra, MCF-7/Dox hücrelerinin 109 kat paklitaksele, 10 kat dosetaksele, 2 kat tamoksifene ve 3 kat ATRA’ya, MCF-7/Vinc hücrelerinin ise 48 kat paklitaksele, 6 kat doksorubisine ve 2 kat tamoksifene çapraz direnç geliştirdiği saptanmıştır. Kombine ilaç uygulamalarında, paklitaksel ve dosetaksel doksorubisin ile, tamoksifen ise doksorubisin ve vinkristin ile beraber sinerjik antiproliferatif etki göstermiştir. ATRA’nın paklitaksel, dosetaksel ve doksorubisin ile indiferant (birbirinden bağımsız) vinkristin ile beraber uygulandığında ise antagonist etkileri olduğu saptanmıştır. Bulgular, meme tümörlerinde uygulanan antikanser ilaç etkilerinin değerlendirilmesi açısından önem taşımaktadır.

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Cite This Article

İŞERİ, Ö. D., KARS, M. D., EROĞLI, S., GÜNDÜZ, U. (2009). Dirençli MCF-7 hücre hatlarında yapısal olarak farklı antikanser ilaçlara karşı çapraz direnç gelişimi. Uluslararası Hematoloji-Onkoloji Dergisi, Cilt: 19 - Sayı: 1, 1–8. https://ajindex.com/articles/322973

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