Abstract:
:The expression of both 92- and 72-kDa gelatinases has been studied in 20 samples of human breast carcinoma by the technique of gelatin zymography. This technique allowed the relative amount of each gelatinase to be determined in small samples of tissue (< 10 mg). More importantly, active and latent forms of the two gelatinases were resolved. Two samples (10-20 mg) were cut from each piece of tumour in order to monitor the variability of gelatinase distribution within that section of tumour. The 72-kDa latent progelatinase was present in 15 of the 20 tumours, with trace amounts in two others. The 62-kDa activated form of this gelatinase was detected in all 15 of the tumours in which the latent form was present. The 92-kDa latent progelatinase was present in 11 of the 20 tumours, with trace amounts in four others. However, the 82-kDa activated form of this gelatinase was only clearly detected in two tumours, although three others showed the presence of trace amounts. The ratio of active to latent forms of the 72-kDa gelatinase ranged from 0.9 to 3.6. There were no marked correlations between gelatinase expression and established staging and prognostic markers. Analysis of three samples of fibroadenoma revealed only very low levels of gelatinase expression. On the basis of these results, activation of the 72-kDa progelatinase appears to be a more common event in invasive breast carcinoma than activation of the 92-kDa progelatinase. However, neither proteinase showed a correlation with metastatic progression, as measured by lymph node involvement.
journal_name
Clin Exp Metastasisjournal_title
Clinical & experimental metastasisauthors
Brown PD,Bloxidge RE,Anderson E,Howell Adoi
10.1007/BF00114976subject
Has Abstractpub_date
1993-03-01 00:00:00pages
183-9issue
2eissn
0262-0898issn
1573-7276journal_volume
11pub_type
杂志文章abstract:PURPOSE:To evaluate lymphangiogenesis in patients with breast carcinoma, explore the underlying mechanism, and study the relationship between lymphangiogenesis and progression of breast carcinoma. METHODS:Sixty-one cases of breast carcinoma with complete clinical and pathological data were analyzed. Using an anti-podo...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1007/s10585-008-9180-4
更新日期:2008-01-01 00:00:00
abstract::Secreted protein, acidic and rich in cysteine (SPARC, also known as osteonectin or BM-40) is a glycoprotein component of the extracellular matrix that has been reported to be involved with a variety of cellular processes. Although SPARC expression levels are frequently altered in a variety of tumor types, the exact im...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1007/s10585-007-9126-2
更新日期:2008-01-01 00:00:00
abstract::Recently the concept that gap junctions play a role in cancer cell metastasis has emerged. However, the mechanism by which this might occur is unknown. To examine this issue a metastatic breast cancer cell line, MDA-MB-435, was stably transfected with human Cx43 cDNA. Four clones of 435 transfectants (435/Cx43(+) c1, ...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1007/s10585-008-9208-9
更新日期:2008-01-01 00:00:00
abstract::The effects of treatment of human lung carcinoma cell line A 549 with recombinant DNA-derived human leukocyte interferons A (rIFN-alpha A) or D (rIFN-alpha D), and human lymphoblastoid interferon (Wellferon) on in vitro cell invasion were investigated in a quantitative invasion assay using human amnion. The A 549 cell...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1007/BF00117932
更新日期:1986-07-01 00:00:00
abstract::MicroRNAs have been identified as key players in the development and progression of osteosarcoma, which is the most common primary malignancy of bone. Sequencing-based miR-omic and quantitative real-time PCR analyses suggested that the expression of miR-193a-3p and miR-193a-5p was decreased by DNA methylation at their...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1007/s10585-016-9783-0
更新日期:2016-04-01 00:00:00
abstract::Recent studies have indicated that KHT fibrosarcoma or B16 melanoma cell variants capable of forming experimental metastases in the lungs of mice after i.v. injection are created stochastically at high rates (approximately 10(-5)/cell/generation). Expression of this phenotype is unstable and hence expanding population...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1007/BF00117930
更新日期:1986-07-01 00:00:00
abstract::This study compared phenotype and behaviour of seven head and neck squamous cell carcinoma (HNSCC) cell lines and normal epithelial cells. Indications were found that in HNSCC cells: 1) loss of the cell-cell adhesion molecule E-cadherin was correlated with loss of epithelioid cell morphology but not with loss of cell-...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1007/BF00115110
更新日期:1996-11-01 00:00:00
abstract::The present study assessed the effects of dietary fat on spontaneous metastasis of Lewis lung carcinoma in mice. Three-week old male C57BL/6 mice were fed the AIN-93G diet or a 45% fat diet (% kcal.) for 7 weeks before they were subcutaneously injected with 2.5 × 10⁵ viable carcinoma cells. The primary tumor was resec...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1007/s10585-010-9347-7
更新日期:2010-12-01 00:00:00
abstract::Melanoma is an aggressive cutaneous malignancy with rapidly rising incidence. Diagnosis of controversial melanocytic lesions, correct prognostication of patients, selection of appropriate adjuvant and systemic therapies, and prediction of response to a given therapy remain very real challenges. Despite these challenge...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章,评审
doi:10.1007/s10585-018-9892-z
更新日期:2018-08-01 00:00:00
abstract::A new model for the study of spontaneous bone metastasis has been developed which allows for the quantification of metastatic tumor burden and cancer cell growth rate, and which describes the progressive changes in bone morphology. Walker 256 (W256) cells or vehicle were injected into the left upper thigh muscle of ma...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1007/BF00133469
更新日期:1992-11-01 00:00:00
abstract::We applied reverse phase protein microarrays technology to map signal pathway interactions in a discovery set of 34 soft tissue sarcoma (STS) bone metastases compared to healthy bone. Proteins associated with matrix remodeling (MMP), adhesion (FAK Y576/577, Syndecan-1), and growth/survival (IGF1R Y1135/1136, PI3K, EGF...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1007/s10585-013-9605-6
更新日期:2014-01-01 00:00:00
abstract::We investigated the role of signal transduction systems in the attachment of human uveal melanoma cells to matrix proteins. Ocular melanoma cells established from primary tumours attached rapidly to all substrates examined. Preferred substrates of attachment were collagens type I, III and IV and fibronectin rather tha...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1007/BF01755881
更新日期:1994-11-01 00:00:00
abstract::Morbidity and mortality of breast cancer patients are drastically increased when primary tumor cells are able to spread to distant sites and proliferate to become secondary lesions. Effective treatment of metastatic disease has been limited; therefore, an increased molecular understanding to identify biomarkers and th...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1007/s10585-012-9452-x
更新日期:2012-04-01 00:00:00
abstract::The combined therapeutic effect of natural killer T (NKT) cell ligand alpha-galactosylceramide (alpha-GalCer) and IL-12 against highly metastatic B16-BL6-HM melanoma cells was investigated. In comparison with a single administration of alpha-GalCer or IL-12, the combined treatment of tumor-bearing mice with alpha-GalC...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1023/a:1006715221088
更新日期:2000-01-01 00:00:00
abstract::Immunotherapy by vaccination represents a novel method for treatment of cancer. In this regard, vaccines with the broadest possible menu of relevant antigens stand the greatest chance of success. Tissue vaccines are composed of material harvested directly from tumors and contain not only antigens associated with neopl...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1007/s10585-008-9213-z
更新日期:2008-01-01 00:00:00
abstract::Breast cancer metastasizes to bone with high frequency and incidence. However, studies of breast cancer metastasis to bone have been limited by two factors. First, the number of models that colonize bone are limited. Second, detection of bone metastases is too insensitive or too laborious for routine, large-scale stud...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1023/a:1024062911144
更新日期:2003-01-01 00:00:00
abstract::Prostate cancer metastases form selectively in the bone marrow. Previously we demonstrated motility was important for the formation of primary prostatic epithelial cell colonies in bone marrow stroma (BMS) co-culture. In this study we looked at the influence of motility factors on the colony formation of epithelial ce...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1023/a:1006696002497
更新日期:1999-06-01 00:00:00
abstract::Metastatic bone disease is an important clinical problem which has proven difficult to study because of a lack of noninvasive investigative modalities. Here we show that dual-energy X-ray absorptiometry (DXA) scanning provides clinically useful information about the status of metastatic bone lesions in cancer patients...
journal_title:Clinical & experimental metastasis
pub_type: 临床试验,杂志文章
doi:10.1023/a:1010991213842
更新日期:2000-01-01 00:00:00
abstract::Metastasis, responsible for most deaths from breast cancer (BC), is a multistep process leading to cancer cell spread. Extracellular matrix (ECM)-related adhesion and apoptosis resistance play pivotal role in metastasis. Ras suppressor-1 (RSU-1) localizes to cell-ECM adhesions and binds to pro-survival adhesion protei...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1007/s10585-015-9701-x
更新日期:2015-03-01 00:00:00
abstract::Signal peptide-CUB-EGF-like domain-containing protein 3 (SCUBE3) is strongly expressed in extremely invasive lung carcinoma. We showed in our previous study that SCUBE3 triggers the transforming growth factor-β pathway and subsequently promotes tumor angiogenesis and the epithelial-mesenchymal transition (EMT). Howeve...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1007/s10585-013-9575-8
更新日期:2013-08-01 00:00:00
abstract::The major obstacle to devising effective ways to treat cancer is its heterogeneity and genetic instability. It was originally postulated that targeting the process of tumor angiogenesis could circumvent this problem, as it involves genetically stable epigenetically controlled host stroma. Thus, anti-angiogenic approac...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章,评审
doi:10.1023/a:1022935117193
更新日期:2003-01-01 00:00:00
abstract::Breast cancer has a predilection for metastasis to the bone marrow. The preprotachykinin-I (PPT-I) gene has a central role in the early migration of breast cancer cells into the bone marrow, making this organ a latent repository of the cancer cells. This study investigated whether the invasive and metastatic potential...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1007/s10585-006-9001-6
更新日期:2005-01-01 00:00:00
abstract::GPR56, a non-classical adhesion receptor, was previously reported to suppress tumor growth and metastasis in xenograft models using human melanoma cell lines. To understand whether GPR56 plays similar roles in the development of endogenous tumors, we analyzed cancer progression in Gpr56 (-/-) mice using a variety of t...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1007/s10585-010-9322-3
更新日期:2010-04-01 00:00:00
abstract::Human CD44 standard isoform (hCD44s) cDNA regulated by a high-expressing promoter was transfected into Balb/c 3T3 cells and the tumorigenic and metastatic capacities of the transfectants were investigated in nude mice at the subcutaneous site. One of three transfectants was tumorigenic. hCD44s expression was lost in t...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1023/a:1006568103588
更新日期:1998-01-01 00:00:00
abstract::Experimental hepatic metastasis of colorectal tumors is frequently studied by local intrahepatic tumor cell implantation. However, although a variety of factors of the implantation procedure may markedly influence tumor growth characteristics, standards are not defined yet. Herein, we studied the effect of different m...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1007/s10585-004-2696-3
更新日期:2004-01-01 00:00:00
abstract::Tumor cells exposed to a growth stress such as low pH, glucose starvation and hypoxia have been shown to exhibit a transient increase in experimental metastatic potential, particularly when allowed to recover under normal growth conditions for a period of 24-48 h. In this study we examined whether this increase in met...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1023/a:1018470709523
更新日期:1997-09-01 00:00:00
abstract::Elevated osteopontin (OPN) transcription often correlates with increased metastatic potential of transformed cells, and in several model systems OPN--whether produced by the tumor cells or by stromal cells - has been shown to enhance metastatic ability. Sequence elements in the OPN promoter have been identified on the...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章,评审
doi:10.1023/a:1022550721404
更新日期:2003-01-01 00:00:00
abstract::Lung cancer is the most frequent and one of the most deadly cancer types and is classified into small cell lung cancer and non-small cell lung cancer (NSCLC). Transforming growth factor beta (TGFβ) regulates a wide array of cell functions and plays a major role in lung diseases, including NSCLC. TGFβ signals through t...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1007/s10585-013-9598-1
更新日期:2013-12-01 00:00:00
abstract::Two variant sublines of the murine 3LL carcinoma with divergent potentials for lymphatic metastasis were used to assess the relationship between tumor cell potential for lymphatic metastasis and its ability to adhere specifically to lymphatic tissue. Using fresh cryostat sections of lymph nodes and spleens, it was fou...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1007/BF01753685
更新日期:1989-05-01 00:00:00
abstract::We aimed to define the clinicopathologic characteristics of breast cancer (BC) patients with brain metastasis (BM) and to investigate the effect of these parameters on survival. Seventy-nine patients diagnosed with BC and symptomatic BM between 1995 and 2011 were retrospectively evaluated. The relationship between cli...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1007/s10585-012-9528-7
更新日期:2013-02-01 00:00:00