Abstract:
:We have established estrogen-independent and antiestrogen-resistant cell lines from hormone-dependent MCF-7 breast cancer cells by long-term culture in the absence of estrogen, or in the presence of antiestrogen toremifene, respectively. By using a cDNA microarray we compared gene expression profiles among estrogen-independent, antiestrogen-resistant and long-term estrogen-treated MCF-7 cells. We also determined how the expression of the differentially expressed genes has developed during the long-term culture of the cell lines. Of the screened 1176 cancer-related genes, FOSL1, TIMP1, L1CAM, GDF15, and MYBL2 were found to be differentially expressed between the cell lines. A change in FOSL1 and TIMP1 expression could be attributed to the development of antiestrogen resistance, whereas induced L1CAM expression was implicated in the development of estrogen-independent growth of the cells. Estrogen regulated genes GDF15 and L1CAM became regulated by toremifene in the later passage number of toremifene-resistant cells, which might be an indication of the developed estrogen-agonistic activity of toremifene in these cells. Our findings suggest a pattern where the hormone-responsive cancer cells, which survive E2 deprivation and/or antiestrogen treatment, first acquire necessary changes in gene expression for transition to maximal growth in the new hormonal environment. Then, after prolonged treatment with antiestrogen, the antiestrogen-resistant cells may eventually generate an E2-agonistic response to antiestrogen, probably acquiring additional growth advantage.
journal_name
Anticancer Drugsjournal_title
Anti-cancer drugsauthors
Pennanen PT,Sarvilinna NS,Ylikomi TJdoi
10.1097/CAD.0b013e32831845e1subject
Has Abstractpub_date
2009-01-01 00:00:00pages
51-8issue
1eissn
0959-4973issn
1473-5741pii
00001813-200901000-00007journal_volume
20pub_type
杂志文章abstract::Neurofibromatosis type 2 (NF2) is an autosomal dominant condition caused by pathogenic variants in the NF2 gene. To date, cytotoxic chemotherapy has no established role in the treatment of NF-2. Historical case reports of malignant schwannomas have documented responses to chemotherapies with cyclophosphamide, vincrist...
journal_title:Anti-cancer drugs
pub_type: 杂志文章
doi:10.1097/CAD.0000000000000953
更新日期:2020-08-01 00:00:00
abstract::CHS 828, a pyridyl cyanoguanidine, is a new drug candidate now in phase I/II trials, that has shown promising anticancer activity in experimental tumor models and primary cultures of cancer cells from patients. In this study the fluorometric microculture cytotoxicity assay was used for evaluation of CHS 828 in primary...
journal_title:Anti-cancer drugs
pub_type: 杂志文章
doi:10.1097/00001813-200208000-00008
更新日期:2002-08-01 00:00:00
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journal_title:Anti-cancer drugs
pub_type: 杂志文章
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journal_title:Anti-cancer drugs
pub_type: 临床试验,杂志文章
doi:10.1097/00001813-199709000-00005
更新日期:1997-09-01 00:00:00
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journal_title:Anti-cancer drugs
pub_type: 杂志文章
doi:10.1097/CAD.0b013e3283634dd0
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abstract::The primary objective was to determine the optimal doses for gemcitabine (prolonged infusion), liposomal doxorubicin (Myocet) and docetaxel as primary (neoadjuvant) chemotherapy for locally advanced breast cancer. Secondary objectives included evaluation of the safety and efficacy of the regimen. Patients (n=19) with ...
journal_title:Anti-cancer drugs
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1097/00001813-200501000-00003
更新日期:2005-01-01 00:00:00
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journal_title:Anti-cancer drugs
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journal_title:Anti-cancer drugs
pub_type: 杂志文章
doi:10.1097/CAD.0000000000000635
更新日期:2018-08-01 00:00:00
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journal_title:Anti-cancer drugs
pub_type: 杂志文章
doi:10.1097/01.cad.0000136886.72917.6f
更新日期:2004-08-01 00:00:00
abstract::Although 5-fluorouracil (5-FU) has been used to treat breast and colorectal cancers for several decades, bolus 5-FU has disappointing efficacy. Prolonged infusion schedules and biomodulation with leucovorin have resulted in improved response rates, but these have not translated into significant improvements in surviva...
journal_title:Anti-cancer drugs
pub_type: 杂志文章,评审
doi:10.1097/00001813-200109000-00001
更新日期:2001-09-01 00:00:00
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journal_title:Anti-cancer drugs
pub_type: 杂志文章
doi:10.1097/CAD.0b013e32834bb6b4
更新日期:2012-01-01 00:00:00
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journal_title:Anti-cancer drugs
pub_type: 杂志文章
doi:10.1097/CAD.0000000000000270
更新日期:2015-10-01 00:00:00
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journal_title:Anti-cancer drugs
pub_type: 杂志文章
doi:10.1097/00001813-200108000-00010
更新日期:2001-08-01 00:00:00
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journal_title:Anti-cancer drugs
pub_type: 杂志文章,评审
doi:10.1097/CAD.0b013e3283585149
更新日期:2012-11-01 00:00:00
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journal_title:Anti-cancer drugs
pub_type: 杂志文章
doi:10.1097/01.cad.0000132238.23050.f5
更新日期:2004-07-01 00:00:00
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journal_title:Anti-cancer drugs
pub_type: 杂志文章,评审
doi:10.1097/00001813-199512006-00003
更新日期:1995-12-01 00:00:00
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journal_title:Anti-cancer drugs
pub_type: 临床试验,杂志文章
doi:10.1097/00001813-199803000-00002
更新日期:1998-03-01 00:00:00
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journal_title:Anti-cancer drugs
pub_type: 杂志文章
doi:10.1097/CAD.0000000000000930
更新日期:2020-08-01 00:00:00
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journal_title:Anti-cancer drugs
pub_type: 杂志文章
doi:10.1097/CAD.0b013e328332a322
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journal_title:Anti-cancer drugs
pub_type: 杂志文章
doi:10.1097/CAD.0b013e328350e8ac
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journal_title:Anti-cancer drugs
pub_type: 杂志文章
doi:10.1097/00001813-200308000-00008
更新日期:2003-08-01 00:00:00
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journal_title:Anti-cancer drugs
pub_type: 杂志文章
doi:10.1097/CAD.0b013e328011a51d
更新日期:2007-03-01 00:00:00
abstract::Small molecule tyrosine kinase inhibitors are rapidly being integrated into the management of cancer. This is the first report of sorafenib and sunitinib, both small molecule tyrosine kinase inhibitors of vascular endothelial growth factor and platelet-derived growth factor receptors, triggering radiation recall derma...
journal_title:Anti-cancer drugs
pub_type: 杂志文章
doi:10.1097/CAD.0b013e328333d679
更新日期:2010-02-01 00:00:00
abstract::Organotypic cultures of human A549 cells were used as a tumor model to investigate sequence effects for combination treatments with adriamycin (ADR) and X-irradiation. Initial drug exposure led to the greatest cytotoxic effect especially when X-rays were delivered 24 h later and this subsequent irradiation did not sig...
journal_title:Anti-cancer drugs
pub_type: 杂志文章
doi:10.1097/00001813-199204000-00010
更新日期:1992-04-01 00:00:00
abstract::The aim of this study was to investigate the effect that recombinant interleukin-2 (rIL-2) (0.16 MUI/injection) had on the pharmacokinetics of imatinib (IM) in plasma. In this study, IM was given orally to mice at a dose of 150 mg/kg once a day for 11 days (from day 1 to 11) either alone or in combination with intrape...
journal_title:Anti-cancer drugs
pub_type: 杂志文章
doi:10.1097/CAD.0b013e3283349913
更新日期:2010-02-01 00:00:00
abstract::Macroautophagy (hereafter referred to as autophagy) plays essential roles in cellular and organismal homeostasis. Transcription factor EB (TFEB) is a master regulator of autophagy and lysosome biogenesis. It is not fully understood how the function of TFEB in autophagy pathway is regulated. Here, we show that Rac1 GTP...
journal_title:Anti-cancer drugs
pub_type: 杂志文章
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更新日期:2019-11-01 00:00:00
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journal_title:Anti-cancer drugs
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更新日期:2003-11-01 00:00:00
abstract::Leiomyosarcomas represent the most common variant of uterine sarcomas, and are also considered to be the least chemosensitive. To date, adriamycin and ifosfamide are believed to be the most effective drugs for its treatment, in addition to docetaxel and gemcitabine. Recently, the introduction of trabectedin has provid...
journal_title:Anti-cancer drugs
pub_type: 杂志文章
doi:10.1097/CAD.0000000000000485
更新日期:2017-04-01 00:00:00
abstract::Tolerability and response rate to weekly combination chemotherapy with trastuzumab and vinorelbine in Japanese women with HER2-overexpressing breast cancer not previously receiving either therapy were assessed. Tumor response was evaluated every 4 weeks and adverse events were graded. A total of 23 patients from six p...
journal_title:Anti-cancer drugs
pub_type: 杂志文章,多中心研究
doi:10.1097/CAD.0b013e328302eb15
更新日期:2008-08-01 00:00:00