Reversal effect of quercetin on talazoparib resistance in BRCA1 mutant triple negative breast cancer

Gamze GÜNEY ESKİLER; Gülşah ÇEÇENER; Ünal EGELİ; Berrin TUNCA

doi:https://doi.org/10.18621/eurj.454176

Makale detayları

Reversal effect of quercetin on talazoparib resistance in BRCA1 mutant triple negative breast cancer

Yazarlar:

Gamze GÜNEY ESKİLER | Gülşah ÇEÇENER | Ünal EGELİ | Berrin TUNCA

Yayıncı:

Prusa Medical Publishing

Ana Başlıklar:

İnsan psikolojisi | İnsan anatomisi, sitolojisi ve histolojisi | Hastalıklar

Dergi:

The European Research Journal 2020 Vol.6 Issue 1, pp.19-25

Belge Tipi:

Makale

Yayın Tarihi:

1/2020

Belge Dili:

İngilizce

Document ID (Org No.):

2000662425

Sıklık:

İki Aylık

eISSN:

2149-3189

DOI:

https://doi.org/10.18621/eurj.454176

Özet:

 


Objectives:
Poly(ADP-ribose) polymerase (PARP) inhibitors have demonstrated an
outstanding activity in patients with BRCA-mutated
and wild-type breast cancer. However, the identification of resistance
mechanisms to PARP inhibitors is a significant clinical challenge in effective
treatment. Thus, new therapeutic strategies are urgently needed to overcome
resistance. The aim of the current study was to explore the potential effect of
quercetin on HCC1937 (BRCA1 mutant)
and talazoparib (BMN 673), a PARP inhibitor, resistant HCC1937 (HCC1937-R)
triple negative breast cancer cells (TNBC). 


Methods: We firstly generated BMN
673 resistance HCC1937 cells by continuous exposure to BMN 673 during 6 months.
Then, cells were exposed to the different concentration (0-100 µM) of quercetin
and the cytotoxic and apoptotic effects of quercetin on these cells were
evaluated by WST-1, Annexin V and dual acridine orange-ethidiumbromide (Et-BR)
staining. 


Results: The cell viability of HCC1937
and HCC1937-R cells reduced to 37.1% and 44.2% at a concentration of 100 μM,
respectively for 48 h (p < 0.01).
Apoptotic rates of HCC1937 and HCC1937-R cells treated with 100 μM quercetin
were nearly 56.0% and 46.0%, respectively (p
< 0.01). Additionally,
theapoptotic morphologicalchanges
were observed in these cells. 









Conclusions: In conclusion, the
obtained results suggest that quercetin could potentially be used as an
alternative therapeutic strategy in BRCA1
mutant TNBC to overcome acquired BMN 673-resistance. 




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Makale detayları

Reversal effect of quercetin on talazoparib resistance in BRCA1 mutant triple negative breast cancer

Yazarlar: Gamze GÜNEY ESKİLER | Gülşah ÇEÇENER | Ünal EGELİ | Berrin TUNCA

Yayıncı: Prusa Medical Publishing

Ana Başlıklar: İnsan psikolojisi | İnsan anatomisi, sitolojisi ve histolojisi | Hastalıklar

Dergi: The European Research Journal 2020 Vol.6 Issue 1, pp.19-25

Belge Tipi: Makale

Yayın Tarihi: 1/2020

Belge Dili: İngilizce

Document ID (Org No.): 2000662425

Sıklık: İki Aylık

eISSN: 2149-3189

DOI: https://doi.org/10.18621/eurj.454176

Sayı

Yazarlar:

Gamze GÜNEY ESKİLER | Gülşah ÇEÇENER | Ünal EGELİ | Berrin TUNCA

Yayıncı:

Prusa Medical Publishing

Ana Başlıklar:

İnsan psikolojisi | İnsan anatomisi, sitolojisi ve histolojisi | Hastalıklar

Dergi:

The European Research Journal 2020 Vol.6 Issue 1, pp.19-25

Belge Tipi:

Makale

Yayın Tarihi:

1/2020

Belge Dili:

İngilizce

Document ID (Org No.):

2000662425

Sıklık:

İki Aylık

eISSN:

2149-3189

DOI:

https://doi.org/10.18621/eurj.454176