Abstract:
:Persistent activation of STAT3 plays an important role in the development of triple-negative breast cancer (TNBC), and suppression of STAT3 is considered as a novel approach for cancer therapy. In this project, we aimed to examine the anticancer activity and molecular mechanism of eupalinolide J (EJ) in TNBC cells. The presented results demonstrated that the growth of human TNBC cells (MDA-MB-231 and MDA-MB-468 cells) was obviously inhibited by EJ. The IC50 values were 3.74 ± 0.58 and 4.30 ± 0.39 μM, respectively. Further study demonstrated that EJ suppressed the proliferation of TNBC cells mainly through cell apoptosis induction, mitochondrial membrane potential (MMP) disruption, and cell cycle arrest. Meanwhile, the STAT3 and p-STAT3 in EJ-treated TNBC cells were remarkably suppressed. Importantly, silencing of STAT3 by STAT3-shRNA significantly blunted the anticancer activities of EJ in TNBC cells, suggesting that EJ suppressed cancer cell proliferation via targeting the STAT3 pathway. Notably, further study demonstrated that EJ significantly promoted the degradation of STAT3 in TNBC cells. Finally, EJ exhibited an effective antitumor activity against MDA-MB-231 cells in vivo. In conclusion, we identified that EJ suppressed the growth of TNBC cells via targeting the STAT3 signaling pathway. These results strongly support that EJ is a promising therapeutic agent for TNBC.
journal_name
Front Pharmacoljournal_title
Frontiers in pharmacologyauthors
Lou C,Chen Y,Zhang J,Yang B,Zhao Hdoi
10.3389/fphar.2019.01071subject
Has Abstractpub_date
2019-09-19 00:00:00pages
1071issn
1663-9812journal_volume
10pub_type
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journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2020.598592
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journal_title:Frontiers in pharmacology
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journal_title:Frontiers in pharmacology
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doi:10.3389/fphar.2017.00939
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pub_type: 杂志文章
doi:10.3389/fphar.2015.00017
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pub_type: 杂志文章
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abstract::Tumor-targeting nanomaterial-based chemotherapeutic drug delivery systems have been shown to represent an efficacious approach for the treatment of cancer because of their stability in blood circulation and predictable delivery patterns, enhanced tumor-selective drug accumulation, and decreased toxicity to normal tiss...
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abstract::Adult-onset Still's disease (AOSD) is a rare inflammatory disease of unknown etiology typically characterized by episodes of spiking fever, evanescent rash, arthralgia, leukocytosis, and hyperferritinemia. The pivotal role of interleukin (IL)-1 and other pro-inflammatory cytokines gives rise to the development of new ...
journal_title:Frontiers in pharmacology
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abstract:Background:Erectile dysfunction (ED) occurs more frequently and causes a worse response to the first-line therapies in diabetics compared with nondiabetic men. Corpus cavernosum vascular dysfunction plays a pivotal role in the occurrence of diabetes mellitus ED (DMED). The aim of this study was to investigate the prote...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2020.01257
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pub_type: 杂志文章,评审
doi:10.3389/fphar.2019.01438
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abstract::Background: Currently, although non-steroidal anti-inflammatory drugs (NSAIDs) were recommended for acute renal colic in the 2018 European Association of Urology guidelines, there are no specific NSAIDs and no specific routes of administration in this guideline. The clinical practice of advocating intravenous opioids ...
journal_title:Frontiers in pharmacology
pub_type:
doi:10.3389/fphar.2019.00096
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abstract:BACKGROUND:Infection with the Hepatitis C Virus (HCV) is a widespread transmittable disease with a diagnosed prevalence of 2.0%. Fortunately, it is now curable in most patients. Sales of medicines to treat HCV infection grew 2.7% per year between 2004 and 2011, enhanced by the launch of the protease inhibitors (PIs) bo...
journal_title:Frontiers in pharmacology
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doi:10.3389/fphar.2016.00197
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pub_type: 杂志文章
doi:10.3389/fphar.2016.00412
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pub_type: 杂志文章,评审
doi:10.3389/fphar.2016.00422
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doi:10.3389/fphar.2019.00342
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pub_type: 杂志文章
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更新日期:2020-04-24 00:00:00