Abstract:
:Androgen receptor (AR) signalling drives neoplastic growth and therapy resistance in prostate cancer. Recent clinical data show that docetaxel combined with androgen deprivation therapy improves outcome in hormone-sensitive disease. We studied whether testosterone and AR signalling interferes with docetaxel treatment efficacy in castration-resistant prostate cancer (CRPC). We found that testosterone supplementation significantly impaired docetaxel tumour accumulation in a CRPC model, resulting in decreased tubulin stabilisation and antitumour activity. Furthermore, testosterone competed with docetaxel for uptake by the drug transporter OATP1B3. Irrespective of docetaxel-induced tubulin stabilisation, AR signalling by testosterone counteracted docetaxel efficacy. AR-pathway activation could also reverse long-term tumour regression by docetaxel treatment in vivo. These results indicate that to optimise docetaxel efficacy, androgen levels and AR signalling need to be suppressed. This study lends evidence for continued maximum suppression of AR signalling by combining targeted therapeutics with docetaxel in CRPC.
journal_name
Br J Cancerjournal_title
British journal of cancerauthors
Mout L,Moll JM,Chen M,de Morrée ES,de Ridder CMA,Gibson A,Stuurman D,Aghai A,Erkens-Schulze S,Mathijssen RHJ,Sparreboom A,de Wit R,Lolkema MP,van Weerden WMdoi
10.1038/s41416-020-01105-ysubject
Has Abstractpub_date
2020-12-01 00:00:00pages
1715-1719issue
12eissn
0007-0920issn
1532-1827pii
10.1038/s41416-020-01105-yjournal_volume
123pub_type
杂志文章abstract:BACKGROUND:PEP02, also known as MM-398, is a novel nanoliposomal irinotecan that has improved pharmacokinetics and tumour bio-distribution of the free drug. This phase 2 study evaluated PEP02 monotherapy as second-line treatment for pancreatic cancer. METHODS:Patients who had metastatic pancreatic adenocarcinoma, Karn...
journal_title:British journal of cancer
pub_type: 杂志文章,多中心研究
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journal_title:British journal of cancer
pub_type: 杂志文章
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pub_type: 杂志文章
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journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1991.169
更新日期:1991-05-01 00:00:00
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pub_type: 杂志文章
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pub_type: 杂志文章
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journal_title:British journal of cancer
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journal_title:British journal of cancer
pub_type: 杂志文章
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journal_title:British journal of cancer
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journal_title:British journal of cancer
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journal_title:British journal of cancer
pub_type: 杂志文章,评审
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更新日期:2018-02-06 00:00:00
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journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/sj.bjc.6605437
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journal_title:British journal of cancer
pub_type: 临床试验,杂志文章,随机对照试验
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journal_title:British journal of cancer
pub_type: 杂志文章
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abstract::Trastuzumab is the only HER2/neu-directed therapy to have received Food and Drug Administration approval for the treatment of patients with metastatic breast cancer. The efficacy of trastuzumab depends on the HER2/neu status of the tumour and the patient's prior treatment, but even when patients are selected on the ba...
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pub_type: 杂志文章
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pub_type: 杂志文章,多中心研究
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journal_title:British journal of cancer
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journal_title:British journal of cancer
pub_type: 临床试验,杂志文章,多中心研究
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