Abstract:
:For women with hormone receptor-positive disease, the third-generation aromatase inhibitors (AIs), anastrozole, letrozole, and exemestane, are more effective than tamoxifen in improving disease-free survival (DFS) when used initially or as adjuvant therapy following two to three years of tamoxifen or after tamoxifen has been completed. Demonstrating improvement in overall survival (OS), or breast cancer-associated mortality, however, requires long follow-up in large numbers of patients. Subsequent crossover to another treatment following disease recurrence further confounds the assessment of OS benefit. DFS is the primary end point of most adjuvant trials, but the definition varies among trials, making cross-trial comparisons difficult. Importantly, DFS benefit does not always correlate with OS benefit. Distant metastasis is a well-recognized predictor of breast cancer-associated mortality, and AIs have shown greater efficacy over tamoxifen in reducing distant metastatic events and improving distant DFS (DDFS). A small proportion of initially treated early breast cancer patients may already have micrometastatic tumor deposits that can result in the rapid development of distant metastases. Thus, early identification and aggressive treatment of such patients with the most effective adjuvant therapies is a major goal. This review discusses the efficacy of the AIs in improving DDFS in the different adjuvant settings and explores whether significant improvements in DDFS correlate with meaningful improvements in OS or breast cancer-associated mortality. Significant DDFS improvement may be a quicker, better end point in clinical trials, leading to a more efficient, faster assessment of treatment efficacy.
journal_name
Cancer Investjournal_title
Cancer investigationauthors
Tang SCdoi
10.1080/07357900701781812subject
Has Abstractpub_date
2008-06-01 00:00:00pages
481-90issue
5eissn
0735-7907issn
1532-4192pii
791949739journal_volume
26pub_type
杂志文章,评审abstract::Following is a review of altered fractionation in radiation therapy for head and neck cancer. The goals of altered fractionation are to increase local-regional control and/or reduce the risk of late complications. Altered fractionation schedules can be broadly classified as accelerated fractionation and hyperfractiona...
journal_title:Cancer investigation
pub_type: 杂志文章,评审
doi:10.3109/07357909809032890
更新日期:1998-01-01 00:00:00
abstract::The G1 cyclins are clearly important factors that control progression through the eukaryotic cell cycle. The expression and activity of these factors are regulated at many different levels and in response to a large number of signals. Such complicated, multilevel controls on expression and activation of cyclin/cdk com...
journal_title:Cancer investigation
pub_type: 杂志文章,评审
doi:10.3109/07357909709115767
更新日期:1997-01-01 00:00:00
abstract::IFN regulatory factor 4 binding protein (IBP) has been shown to play an important role in the progression of malignant tumors such as breast cancer cells, but its function in oral squamous cell carcinoma (OSCC) remains unclear. We found that IBP ectopically expressed in some OSCC specimens but not in normal oral mucos...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.3109/07357907.2012.734355
更新日期:2012-12-01 00:00:00
abstract::Ammonium sulfate (AS) precipitation by consecutive steps at 10% to 50% saturation has been utilized for fractionation of cytoplasmic estrogen receptor (ER) and progesterone receptor (PgR). The highest percentage of both receptor activities are confined mainly in two fractions at AS saturation from 20% to 30% and 30% t...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.3109/07357908909039842
更新日期:1989-01-01 00:00:00
abstract::In summary, anemia developing in a patient with cancer can be due to several different factors. A relative failure of erythropoiesis, in conjunction with a modestly shortened erythrocyte survival, is the most likely explanation for the anemia and can occur in patients with or without bone marrow invasion. Several theo...
journal_title:Cancer investigation
pub_type: 杂志文章,评审
doi:10.3109/07357908509039786
更新日期:1985-01-01 00:00:00
abstract::This is the first of two papers describing the naturally occurring retroviruses (RNA tumor viruses). Here, the general properties of these viruses and the biology of the fish, reptilian, chicken, and mouse retroviruses are described. In the next issue of Cancer Investigation the biologic properties of the cat, cattle,...
journal_title:Cancer investigation
pub_type: 杂志文章,评审
doi:10.3109/07357908309040934
更新日期:1983-01-01 00:00:00
abstract::Drug resistance to TKIs and the existance of CML leukemia stem cells is an urgent problem. In this study, we demonstrate that quinacrine (QC) induces apoptosis in BCR-ABL positive CML and acute lymphoblastic leukemia (ALL) cells. Interestingly, QC inhibits the colony formation of primary CD34+ progenitor/stem leukemia...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.1080/07357907.2019.1630633
更新日期:2019-01-01 00:00:00
abstract::The addition of corticosteroids in the early 1950s to the treatment armamentarium provided cure of some diseases and control of many. They have become an integral part of many cancer treatment regimens. Early reports of severe affective disorders appear less frequent today in patients receiving steroids, though contro...
journal_title:Cancer investigation
pub_type: 杂志文章,评审
doi:10.3109/07357908909041378
更新日期:1989-01-01 00:00:00
abstract::We performed the analysis of database on 409 patients with LD-SCLC to evaluate as to what extent the clinical outcome of large prospective trials was reproduced in routine practice. The analysis has shown that the hazard rate of death in the absence of prophylactic cranial irradiation (PCI) adjusted for the effects of...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.3109/07357907.2013.861470
更新日期:2014-01-01 00:00:00
abstract::The sequential administration of standard chemotherapy regimens to treat metastatic breast cancer may keep patients and oncologists from considering other important, but more psychologically difficult, issues such as the patient's declining health or approaching death. This practice also utilizes health care resources...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.3109/07357909409021402
更新日期:1994-01-01 00:00:00
abstract::The present study investigates the association between IL12Bpro and +16974A/C in 3' -untranslated region (UTR) polymorphisms of IL12B and IL-12p40 serum level related to development of colorectal cancer (CRC). Our results showed similar distribution of both the investigated polymorphisms among CRC patients and healthy...
journal_title:Cancer investigation
pub_type: 杂志文章,多中心研究
doi:10.3109/07357900902918486
更新日期:2009-11-01 00:00:00
abstract::N- and K-ras mutations at codons 12 and 13 were investigated using oligonucleotide hybridization analysis after PCR amplification and subsequent sequence analysis of the amplified DNA from the region of interest in the following prostatic primary and metastatic (met) carcinoma-derived cell lines: 1013L (primary), PC3 ...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.3109/07357909309020257
更新日期:1993-01-01 00:00:00
abstract::Cells from 11 chronic lymphocytic leukemic (CLL) patients were induced to differentiate with various doses of tetradecanoyl phorbol-13-acetate (TPA) and the degree of induction was followed up to six days by measuring the expression of two surface membrane markers (SmIg and GP-70), Ig secretion, tartrate-resistant aci...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:
更新日期:1987-01-01 00:00:00
abstract::Twenty-three patients, 9 with immunoblastic lymphadenopathy and 14 with atypical immunoproliferative disorders (AIPD), were studied in order to determine their clinical, radiographic, and pathologic features. Diffuse lymphadenopathy was present in all patients. Patients with immunoblastic lymphadenopathy (ILA) had an ...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.3109/07357908309063292
更新日期:1983-01-01 00:00:00
abstract::The role of tyrosine kinase inhibitors (TKIs) in the treatment of advanced malignancies is well established. Imatinib and vatalanib are oral TKIs with different mechanisms of action. This trial sought to establish the safety, tolerability, and maximum tolerated dose (MTD) of the two agents in combination. Secondary ob...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.3109/07357907.2011.568567
更新日期:2011-05-01 00:00:00
abstract::This case control study investigated whether polymorphisms of estrogen metabolizing genes CYP1A1 MspI, CYP17 MspAI, COMT Val(158) Met, and SULT1A1 Arg(213) His have any role in familial breast cancer susceptibility risk. Logistic regression analysis adjusted to age was used to calculate odds ratios (ORs) and 95% confi...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.3109/07357900902744494
更新日期:2010-03-01 00:00:00
abstract::Promoter DNA hypermethylation of APC, DAPK, and GSTP1 genes was evaluated in biopsy and matched serum of 160 lung cancer patients and 70 controls. In biopsy, 83.1, 83.1, and 78.1% of lung cancer patients and 72.9, 70, and 70% of controls, while in serum, 52.5, 30.6, and 65.6% of lung cancer patients and 14.3, 18.6, an...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.1080/07357907.2017.1309547
更新日期:2017-07-03 00:00:00
abstract::Soluble CTLA4 (sCTLA4) was assessed in sera of 43 new cases with breast cancer and 44 age- and sex-matched healthy individuals by enzyme-linked immunosorbent assay method. Associations of sCTLA4 levels with the six important CTLA4 Single Nucleotide Polymorphisms (SNPs) and with the resulted haplotypes were investigate...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.3109/07357901003630934
更新日期:2010-10-01 00:00:00
abstract::Endothelin-1 (ET-1) is a potent mitogen in various precursor tumor cells, including endometrial adenocarcinoma. It is proposed that ET-1 produced by endometrial adenocarcinoma may participate in the angiogenesis of this carcinoma in vivo. Endothelin converting enzyme-1 (ECE-1) is the key enzyme that synthesizes ET-1. ...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.1081/cnv-100107738
更新日期:2001-01-01 00:00:00
abstract:BACKGROUND:Premenopausal women treated for early stage breast cancer (ESBC) are at risk for chemotherapy-related amenorrhea (CRA). Prospectively-validated, predictive markers of CRA are needed. PATIENTS AND METHODS:Premenopausal women with ESBC and planned chemotherapy (>/= 25% risk of amenorrhea) were evaluated. Foll...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.1080/07357900701829777
更新日期:2008-04-01 00:00:00
abstract::Radioimmunoscintigraphy (RIS) is coming into its own as an imaging modality in clinical oncology. Early experience with indium-111-labeled intact murine monoclonal antibodies (MoAbs) in colorectal cancer suggested that RIS images hepatic metastases poorly. Moreover, an antimurine immune response was frequently provoke...
journal_title:Cancer investigation
pub_type: 杂志文章,评审
doi:10.3109/07357909909032874
更新日期:1999-01-01 00:00:00
abstract::erbB-2 protein is believed to be a cell membrane receptor for the recently identified ligand gp30. When overexpressed, erbB-2 is an indicator of poor prognosis in adenocarcinomas of breast, stomach, lung, and endometrium. Even more important, clinical data suggest that erbB-2 overexpression may be an indicator of poor...
journal_title:Cancer investigation
pub_type: 杂志文章,评审
doi:10.3109/07357909209024819
更新日期:1992-01-01 00:00:00
abstract::Human mesenchymal stem cells (hMSCs) play an important role in the development of human cancers. In the present study, we observed that hMSCs promoted human prostate cancer (PCa) cell PC-3 growth in vivo and in vitro. The conditional medium of hMSCs promoted the proliferation, migration, and invasion of PC-3 cells. Th...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.3109/07357907.2012.692171
更新日期:2012-08-01 00:00:00
abstract::Previously, we developed an orthotopic xenograft model of human glioblastoma multiforme (GBM) with high EGFR expression and invasiveness in Balb/c nu/nu nude mice. Now we also developed the same orthotopic xenograft model in transgenic nude mice with green fluorescent protein (GFP) expression. The present orthotopic x...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.3109/07357907.2012.697232
更新日期:2012-08-01 00:00:00
abstract::Methylation pattern is presented here for first time as a potential molecular marker of changes on SSTR2A and SHP-1(I) gene promoter related to breast and prostate carcinoma. Our results have shown low concordances with SSTR2A and methylated state in prostate cancer and moderate relationship with unmethylated CpG-27 i...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.3109/07357907.2014.1001892
更新日期:2015-03-01 00:00:00
abstract::Glioma stem cells (GSCs) play major roles in drug resistance, tumour maintenance and recurrence of glioblastoma. We investigated inhibition of the GTPase dynamin 2 as a therapy for glioblastoma. Glioma cell lines and patient-derived GSCs were treated with dynamin inhibitors, Dynole 34-2 and CyDyn 4-36. We studied abou...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.1080/07357907.2019.1582060
更新日期:2019-01-01 00:00:00
abstract::The immunotherapeutic effects of interleukin-1 alpha (IL-1 alpha) encapsulated within 1-5 microns-diameter poly (D, L-lactide) microspheres and delivered intratumorally into fibrosarcoma-bearing mice were investigated. Such microspheres are avidly taken up by macrophages, and directing IL-1 alpha into these cells may ...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.1081/cnv-120023770
更新日期:2003-01-01 00:00:00
abstract::The purpose of this study was to assess the usefulness of thallium-201 (Tl-201) single-photon emission-computed tomography (SPECT) scintimammography to differentiate benign from malignant breast masses in 32 female Taiwanese patients with indeterminate mammographic probability of malignancy because of mammographically...
journal_title:Cancer investigation
pub_type: 临床试验,杂志文章
doi:10.1081/cnv-120025089
更新日期:2003-01-01 00:00:00
abstract::The purpose of this study was to clarify the mechanism of IFN-α resistance in RCC. The effects of IFN-α on induction of apoptosis and cell-cycle arrest were analyzed by flow cytometric analysis. Jak-Stat pathway components induced by IFN-α was evaluated using Western blotting. The results suggested that IFN-α caused g...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.3109/07357907.2011.568566
更新日期:2011-06-01 00:00:00
abstract::Neurological paraneoplastic syndromes are exceedingly rare, and often difficult to recognize clinically. Paraneoplastic achalasia is a condition characterized by new-onset dysphagia that is unrelated to tumor burden, most often due to the development of auto-immune antibodies targeting esophageal tissue. Due to the ra...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.1080/07357907.2020.1852412
更新日期:2021-01-06 00:00:00