Abstract:
BACKGROUND:MicroRNAs (miRNAs) have been linked to a number of cancer types including breast cancer. The rate of brain metastases is 10-30% in patients with advanced breast cancer which is associated with poor prognosis. The potential application of miRNAs in the diagnostics and therapeutics of breast cancer with brain metastasis is an area of intense interest. In an initial effort to systematically address the differential expression of miRNAs and mRNAs in primary breast cancer which may provide clues for early detection of brain metastasis, we analyzed the consequent changes in global patterns of gene expression in Gene Expression Omnibus (GEO) data set obtained by microarray from patients with in situ carcinoma and patients with brain metastasis. MATERIALS AND METHODS:The miRNA-pathway regulatory network and miRNA-mRNA regulatory network were investigated in breast cancer specimens from patients with brain metastasis to screen for significantly dysregulated miRNAs followed by prediction of their target genes and pathways by Gene Ontology (GO) analysis. RESULTS:Functional coordination of the changes of gene expression can be modulated by individual miRNAs. Two miRNAs, hsa-miR-17-5p and hsa-miR-16-5p, were identified as having the highest associations with targeted mRNAs [such as B-cell lymphoma 2 (BCL2), small body size/mothers against decapentaplegic 3 (SMAD3) and suppressor of cytokine signaling 1 (SOCS1)] and pathways associated with epithelial-mesenchymal transitions and other processes linked with cancer metastasis (including cell cycle, adherence junctions and extracellular matrix-receptor interaction). mRNAs for two genes [HECT, UBA and WWE domain containing 1 (HUWE1) and BCL2] were found to have the highest associations with miRNAs, which were down-regulated in brain metastasis specimens of breast cancer. The change of 11 selected miRNAs was verified in The Cancer Genome Atlas (TCGA) breast cancer dataset. Up-regulation of hsa-miR-17-5p was detected in triple-negative breast cancer tissues in TCGA. Furthermore, a negative correlation of hsa-miR-17-5p with overall survival and phosphatase and tensin homolog (PTEN) and BCL2 target genes was found in TCGA breast cancer specimens. CONCLUSION:Our findings provide a functionally coordinated expression pattern of different families of miRNAs that may have potential to provide clinicians with a strategy to treat breast cancer with brain metastasis from a systems-rather than a single-gene perspective.
journal_name
Anticancer Resjournal_title
Anticancer researchauthors
Li Z,Peng Z,Gu S,Zheng J,Feng D,Qin Q,He Jdoi
10.21873/anticanres.11841subject
Has Abstractpub_date
2017-08-01 00:00:00pages
4455-4468issue
8eissn
0250-7005issn
1791-7530pii
37/8/4455journal_volume
37pub_type
杂志文章abstract:BACKGROUND:Amrubicin is an active agent for the treatment of small-cell lung cancer (SCLC). However, there have been no reports of long-term amrubicin use. PATIENTS AND METHODS:Twelve patients with SCLC who were treated with eight or more cycles of amrubicin chemotherapy were retrospectively reviewed. RESULTS:The med...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2012-04-01 00:00:00
abstract:AIM:This study analyzed the effect of metastasectomy on overall mortality (OM) and perioperative outcomes in patients with metastatic renal cell carcinoma (mRCC) treated exclusively with targeted therapy. MATERIALS AND METHODS:Using the Surveillance, Epidemiology, and End Results (SEER) database (2006-2015), Kaplan-Me...
journal_title:Anticancer research
pub_type: 杂志文章
doi:10.21873/anticanres.13604
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abstract:BACKGROUND:Neuroendocrine (NE) carcinomas of the lung exhibit expression of various stem cell antigens, and except for carcinoid tumours, carry a poor prognosis. Despite the fact that 10%-30% of all non-small cell lung carcinomas (NSCLC) which are not classified as NE carcinomas also show expression of NE markers, data...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2013-03-01 00:00:00
abstract:BACKGROUND:The effectiveness of mammographic screening in women aged over 50 years has been confirmed in the United States and Europe, but its effectiveness in women aged from 40 to 49 years remains controversial. The optimum age for effective screening of subjects for breast cancer by mammography in Japan was studied ...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2000-09-01 00:00:00
abstract:BACKGROUND:High thymidine kinase (TK) activity in cancer cells could counteract adjuvant chemotherapy directed at the inhibition of de novo DNA synthesis. TK is an independent prognostic factor in breast cancer patients receiving adjuvant chemotherapy. MATERIAL AND METHODS:In this paper, we describe the effects of ext...
journal_title:Anticancer research
pub_type: 杂志文章,多中心研究
doi:
更新日期:2000-03-01 00:00:00
abstract::Dimethylsilane tetramines are structural analogues of spermine with a (CH3)2 Si-group incorporated into the central carbon chain. They have potential as anticancer drugs. Their cytotoxic effect was considered to rely mainly on their polyamine antagonist property. In order to obtain new ideas about cellular mechanisms,...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2002-11-01 00:00:00
abstract::The neurogenic rat tumour BT4A was serially transplanted to the dorsum of the right hind leg of BD IX rats. The tumours were treated with water bath heating at 44.0 degrees C for one hour alone or combined with bleomycin or BCNU, both given intraperitoneally at a dose of 20 mg/kg. Bleomycin alone had no effect on tumo...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:1982-11-01 00:00:00
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journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2015-05-01 00:00:00
abstract::Mdm2 (murine double minute 2) is an oncogene, first identified in BALB/c 3T3 cells. Over-expression and gene amplification of Mdm2 were found in a variety of human cancers. Recently, Mdm2 was found to be an E3 ubiquitin ligase that promotes degradation of p53, which contributes significantly to its oncogenic activity....
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2003-07-01 00:00:00
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journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:1996-11-01 00:00:00
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journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2011-11-01 00:00:00
abstract::An in vitro cell line (HT 58) has been established from a human (B) NHL xenograft. The lymphoma cells in culture retained their lymphoblastic appearance, DNA-content, IgM/lambda monoclonality and many immunophenotypic markers. The clonal chromosomal abnormalities involved the chromosomes 1, 2, 3 and 14. The cells expr...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:1991-07-01 00:00:00
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journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2015-05-01 00:00:00
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journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2010-08-01 00:00:00
abstract::This review presents the clinical pharmacokinetics of the marketed therapeutic monoclonal antibodies used in oncology. Aspects regarding absorption, tissue distribution, elimination as well as factors influencing pharmacokinetics, pharmacodynamics and kinetic interactions are also discussed. ...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2005-05-01 00:00:00
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journal_title:Anticancer research
pub_type: 杂志文章
doi:10.21873/anticanres.12182
更新日期:2017-12-01 00:00:00
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journal_title:Anticancer research
pub_type: 临床试验,杂志文章
doi:
更新日期:1995-03-01 00:00:00
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journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2003-03-01 00:00:00
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journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2016-03-01 00:00:00
abstract::The effect of conagenin (CNG) on intestinal toxicity induction by 5-fluorouracil (5-Fu) was investigated. In mice given sublethal doses of 5-Fu (50mg/kg, i.v.) for 5 consecutive days, a decrease in body weight and diarrhea accompanied with hemorrhaging of the duodenum, atrophy of cecum and reduced small intestine leng...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:1996-09-01 00:00:00
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journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:1992-11-01 00:00:00
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journal_title:Anticancer research
pub_type: 杂志文章
doi:10.21873/anticanres.14475
更新日期:2020-08-01 00:00:00
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journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2002-11-01 00:00:00
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journal_title:Anticancer research
pub_type: 杂志文章,评审
doi:
更新日期:2013-07-01 00:00:00
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journal_title:Anticancer research
pub_type: 杂志文章,评审
doi:
更新日期:2005-07-01 00:00:00
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journal_title:Anticancer research
pub_type: 杂志文章
doi:10.21873/anticanres.13963
更新日期:2020-01-01 00:00:00
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journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2009-10-01 00:00:00
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journal_title:Anticancer research
pub_type: 杂志文章
doi:10.21873/anticanres.14049
更新日期:2020-02-01 00:00:00
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journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:1993-07-01 00:00:00
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journal_title:Anticancer research
pub_type: 杂志文章
doi:
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