Assessment of Phenylboronic Acid Nitrogen Mustards as Potent and Selective Drug Candidates for Triple-Negative Breast Cancer

Author(s):  
Heli Fan ◽  
Muhammad Asad Uz Zaman ◽  
Wenbing Chen ◽  
Taufeeque Ali ◽  
Anahit Campbell ◽  
...  
2018 ◽  
Vol 47 (35) ◽  
pp. 12197-12208 ◽  
Author(s):  
Jitka Pracharova ◽  
Vojtech Novohradsky ◽  
Hana Kostrhunova ◽  
Pavel Štarha ◽  
Zdeněk Trávníček ◽  
...  

A half-sandwich Os(ii) bathophenanthroline complex is a potent agent against highly progressive, poorly treatable triple-negative breast cancer cells.


Nanomedicine ◽  
2020 ◽  
Vol 15 (16) ◽  
pp. 1551-1565
Author(s):  
Sai Kiran SS Pindiprolu ◽  
Praveen T Krishnamurthy ◽  
Venkata Rao Ghanta ◽  
Pavan Kumar Chintamaneni

Aim: To study the active targeting efficacy of phenylboronic acid-modified niclosamide solid lipid nanoparticles (PBA-Niclo-SLN) in triple-negative breast cancer (TNBC). Materials & methods: PBA-Niclo-SLNs were formulated by an emulsification-solvent evaporation method using PBA-associated stearylamine (PBSA) as lipid. The drug uptake and the anticancer propensity of PBA-Niclo-SLN were studied in TNBC (MDA-MB231) cells and tumor-bearing mice. Results: PBA-Niclo-SLN formulation resulted in greater antitumor efficacy by inducing G0/G1 cell cycle arrest and apoptosis. Besides, PBA-Niclo-SLN effectively inhibited STAT3, CD44+/CD24- TNBC stem cell subpopulation, epithelial–mesenchymal transition markers. Besides, PBA-Niclo-SLN selectively accumulated at the tumor site with more significant tumor regression and improved the survivability in TNBC tumor-bearing mice. Conclusion: PBA-Niclo-SLN formulation would be an effective strategy to eradicate TNBC cells (breast cancer stem cells and nonbreast cancer stem cells) efficiently.


Author(s):  
Fu Peng ◽  
Hailin Tang ◽  
Junrong Du ◽  
Jianping Chen ◽  
Cheng Peng

Triple-negative breast cancer (TNBC) is the subtype of breast cancer with more aggressive growth and metastasis and without efficient therapies. Hence, it is worthwhile to search for potential effective drug candidates. According to our previous study, isoliquiritigenin (ISL) exerted a potent anticancer effect on breast cancer proliferation. Its effect on TNBC growth, metastasis and mechanism deserves further investigation. In this study, PCR array screened a significant increase of miR-200c in BT-549 and MDA-MB-231 cells after ISL treatment, and ISH exerted that miR-200c was expressed at a low level in breast cancer tissue of patients. We also found that ISL could up-regulate miR-200c, resulting in the inhibition of epithelial-mesenchymal transition. Meanwhile, ISL could inhibit metastasis and tumor growth in nude mice models through the increase of miR-200c. Further study displayed that ISL decreased c-Jun expression through the increase of miR-200c. Interestingly, we also detected that ISL might increase miR-200c expression through the demethylation of miR-200c promoter region. These findings indicated that ISL could be potentially developed as a novel drug candidate for TNBC in microRNA-based cancer therapies.


Planta Medica ◽  
2015 ◽  
Vol 81 (11) ◽  
Author(s):  
AJ Robles ◽  
L Du ◽  
S Cai ◽  
RH Cichewicz ◽  
SL Mooberry

2020 ◽  
pp. 75-80
Author(s):  
S.A. Lyalkin ◽  
◽  
L.A. Syvak ◽  
N.O. Verevkina ◽  
◽  
...  

The objective: was to evaluate the efficacy of the first line chemotherapy in patients with metastatic triple negative breast cancer (TNBC). Materials and methods. Open randomized study was performed including 122 patients with metastatic TNBC. The efficacy and safety of the first line chemotherapy of regimens АТ (n=59) – group 1, patients received doxorubicine 60 мг/м2 and paclitaxel 175 мг/м2 and ТР (n=63) – group 2, patients received paclitaxel 175 мг/м2 and carboplatin AUC 5 were evaluated. Results. The median duration of response was 9.5 months (4.5–13.25 months) in patients received AT regimen and 8.5 months (4.7–12.25 months), in TP regimen; no statistically significant differences were observed, р=0.836. The median progression free survival was 7 months (95% CI 5–26 months) in group 1 and 7.5 months (95% CI 6–35 months) in group 2, p=0.85. Both chemotherapy regimens (AT and TP) had mild or moderate toxicity profiles (grade 1 or 2 in most patients). No significant difference in gastrointestinal toxicity was observed. The incidence of grade 3–4 neutropenia was higher in patients of group 2 (TP regimen): 42.8% versus 27% (р<0.05). Conclusions. Both regimens of chemotherapy (AT and TP) are appropriate to use in the first line setting in patients with metastatic TNBC. Key words: metastatic triple negative breast cancer, chemotherapy, progression free survival, chemotherapy toxicity.


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