Abstract:
:Insulin-like growth factor I receptor (IGF-IR) is critical to cell survival and growth and altered IGF-IR expression is found in many human cancers. However, its expression and potential role in gastric cancer development and progression has not been explored. The IGF-IR expression level was determined via immunohistochemistry in primary tumor and lymph node metastasis of 86 cases of resected gastric cancer. Relationships of IGF-IR expression with transcription factor Spl expression and clinicopathological features were analyzed. The impact of altered Sp1 expression on IGF-IR expression and gastric cancer biology was further determined using small inhibitory RNA for Sp1 mRNA. We found that IGF-IR was overexpressed in 62% of the tumor samples when compared with adjacent tumor-free gastric mucosa. Patients with lymph node metastases had strong expression of IGF-IR in both primary and metastatic tumor cells. IGF-IR overexpression in the primary tumor correlated with increased lymph node metastasis. Furthermore, the level of IGF-IR expression directly correlated with that of Spl, an important transcription factor for IGF-IR regulation. Knocking-down of Spl expression by small inhibitory RNA led to decreased IGF-IR expression and attenuated growth and metastasis of gastric cancer cells. Therefore, dysregulated expression of IGF-IR and/or Sp1 may contribute to the growth and metastasis of gastric cancer and potentially can be a target of therapeutic intervention.
journal_name
Clin Exp Metastasisjournal_title
Clinical & experimental metastasisauthors
Jiang Y,Wang L,Gong W,Wei D,Le X,Yao J,Ajani J,Abbruzzese JL,Huang S,Xie Kdoi
10.1007/s10585-005-1198-2subject
Has Abstractpub_date
2004-01-01 00:00:00pages
755-64issue
8eissn
0262-0898issn
1573-7276journal_volume
21pub_type
杂志文章abstract::Inflammatory breast cancer (IBC) is the most lethal form of locally advanced breast cancer known. IBC carries a guarded prognosis primarily due to rapid onset of disease, typically within six months, and the propensity of tumor emboli to invade the dermal lymphatics and spread systemically. Although the clinical manif...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1023/a:1015518114931
更新日期:2002-01-01 00:00:00
abstract::MicroRNAs are a class of ≈22-nt noncoding single-strand RNAs regulating gene expression postscriptionally. Metastasis caused poor prognosis in colorectal cancer patients and half of the patients developed metastatic lesions when admission. Here we investigated the possible roles of microRNAs in regulating metastasis i...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1007/s10585-012-9463-7
更新日期:2012-06-01 00:00:00
abstract::We studied the influence of 10 synthetic glycoamine analogs on colony formation in 0.3 and 0.9% agarose by metastatic human breast carcinoma (MDA-MB-435) and melanoma (TXM-13) cells. Nine synthetic analogs significantly inhibited the colony formation in 0.9% agarose of MDA-MB-435 human breast carcinoma cells; five com...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1007/BF00053899
更新日期:1996-05-01 00:00:00
abstract::We examined the in vivo anti-tumor activity of the benzoic acid derivative, TAC-101 (4-[3,5-bis(trimethylsilyl)benzamido] benzoic acid), for intrahepatic spread of JHH-7 human hepatocellular carcinoma (HCC) cells and its mechanism of action. Oral administration of TAC-101 markedly inhibited liver tumor of JHH-7 cells ...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1023/a:1006567229929
更新日期:1998-10-01 00:00:00
abstract::We have examined the effects of the microenvironment on the frequency and generation of metastatic variant cells in both parental B16F1 melanoma cells and nascent clones. The metastatic abilities of cultured B16F1 cells were tested after a period of growth in the presence or absence of a second cell population separat...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1007/BF01756386
更新日期:1991-03-01 00:00:00
abstract::Pulmonary metastasectomy (PM) is an accepted treatment modality in colorectal cancer (CRC) patients with pulmonary tumor spread. Positive intrathoracic lymph nodes at the time of PM are associated with a poor prognosis and 5-year survival rates of <20 %. Increased lymphangiogenesis in pulmonary metastases might repres...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章,多中心研究
doi:10.1007/s10585-015-9763-9
更新日期:2016-02-01 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::Electrochemotherapy (ECT) is a novel treatment for recurrent or in-transit unresectable melanoma metastases based on the administration of anti-neoplastic drugs followed by cancer cell electroporation. Whether ECT can also induce anti-tumour immunity is unclear. We addressed this issue investigating the presence of de...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1007/s10585-012-9505-1
更新日期:2013-01-01 00:00:00
abstract::Osteopontin (OPN) is a glycosylated, secreted phosphoprotein that functions both as a cell attachment and chemotactic factor. Elevated expression of OPN confers enhanced metastatic ability on transformed cells, suggesting that OPN may contribute to the malignant progression of tumors. Migration of mammary carcinoma ce...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1007/s10585-006-9007-0
更新日期:2005-01-01 00:00:00
abstract::We analysed population-based treatment and survival data of patients who presented with metastatic rectal cancer. All patients diagnosed with primary synchronous metastatic rectal cancer between 1992 and 2008 in the Eindhoven Cancer Registry area were included. Date of diagnosis was divided into three periods (1992-19...
journal_title:Clinical & experimental metastasis
pub_type: 历史文章,杂志文章
doi:10.1007/s10585-010-9370-8
更新日期:2011-03-01 00:00:00
abstract::It is generally accepted that recent advances in anticancer agents have contributed significantly to the improvement of both the disease-free survival and quality of life in cancer patients. However, in many instances, a favorable initial response to treatment changes afterwards, thereby leading to cancer relapse and ...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章,评审
doi:10.1007/s10585-018-9903-0
更新日期:2018-04-01 00:00:00
abstract::The occurrence of metastases is the hallmark of cancer. Development of metastasis severely affects prognosis and survival. It limits or discourages therapeutic interventions since no therapies are available to block or prevent cancer invasion. In order to invade, epithelial cancer cells need to penetrate through the b...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章,评审
doi:10.1023/a:1011879900554
更新日期:2000-01-01 00:00:00
abstract::We have previously isolated a series of MCF-7 human breast cancer cell variants which no longer require estrogen-supplementation for tumor growth in nude mice (Clarke et al. Proc Natl Acad Sci USA 86: 3649-3653, 1989). We now report that these hormone-independent and hormone-responsive variants (MIII, MCF7/LCC1) can i...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1007/BF00880062
更新日期:1993-01-01 00:00:00
abstract::Human tissue factor pathway inhibitor-2 (TFPI-2), also known as placental protein (PP5) and matrix-associated serine protease inhibitor (MSPI), is a 32-kDa extracellular matrix (ECM) protein consisting of three tandomly arranged Kunitz-type domains that inhibits plasmin, trypsin, chymotrypsin, cathepsin G and plasma k...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1023/a:1011085820250
更新日期:2000-01-01 00:00:00
abstract::Vascular endothelial growth factor (VEGF) is a potent angiogenic growth factor with a key role in many physiological and pathological processes. Investigation into the implications of circulating levels of this cytokine is progressing at an exponential rate. However, there are important inconsistencies between reports...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章,评审
doi:10.1023/a:1021379811308
更新日期:2002-01-01 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::Although in the past little attention has been paid to the influence of osteosarcoma cells in osteoclast function, recent studies suggest a close relationship between osteosarcoma aggressiveness and osteoclastic activity. The present study addresses the paracrine effects of MG63 cells, a human osteosarcoma-derived cel...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1007/s10585-011-9387-7
更新日期:2011-08-01 00:00:00
abstract::Metastasis is a vital target for cancer treatment, since the majority of cancer patients die from metastatic, rather than the primary disease. KiSS1 has been identified as a metastasis suppressor gene in melanoma and breast carcinomas. We show here that KiSS1 is also a metastasis suppressor in human ovarian cancer. Ov...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1007/s10585-005-8186-4
更新日期:2005-01-01 00:00:00
abstract::Platelet-derived growth factor BB (PDGF BB) and the PDGF receptor beta are expressed on mesothelioma cells, but their biological function has not yet been defined. In the present study we used Boyden chambers fitted with filters coated with the adhesive matrix proteins fibronectin, laminin, collagen type IV or the non...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1023/a:1006542301794
更新日期:1998-08-01 00:00:00
abstract:BACKGROUND:One of the major clinical problems in breast cancer detection is the relatively high incidence of occult lymph node metastases undetectable by standard procedures. Since the ascertainment of breast cancer stage determines the following treatment, such a "hypo-diagnosis" leads to inadequate therapy, and hence...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1007/s10585-007-9135-1
更新日期:2008-01-01 00:00:00
abstract::The interaction of tumor cells with endothelial cells is a key event in tumor metastasis. We established an in vitro invasion assay system, in which the invasion of tumor cells after interaction with endothelial cells can be examined. Two chamber culture wells separated by porous membrane were used. Human umbilical ve...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1007/BF01753837
更新日期:1994-07-01 00:00:00
abstract::Growth of human tumor cells as three-dimensional (3D) multicellular spheroids modifies their invasive properties. Here we study the differences in the biological features of MCF-7, a human breast cancer cell line, and its multidrug resistant variant (MDR-MCF-7) cultured as spheroids or as monolayers. Three-dimensional...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1023/a:1014594825502
更新日期:2002-01-01 00:00:00
abstract::In order to study the usefulness of treatment with vinblastine (VLB) in the prevention of cancer metastasis in squamous cell lung cancer, 50 patients with locoregional disease were randomized to receive either locoregional RT alone (group A) or a weekly intravenous bolus injection of VLB (6 mg/m2) concurrently with an...
journal_title:Clinical & experimental metastasis
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1007/BF01580405
更新日期:1988-01-01 00:00:00
abstract::Metastatic variant sublines of the murine RAW117 large cell lymphoma or lymphosarcoma have been established in vitro by sequential cycles of harvesting of liver tumor nodules after intravenous inoculation of tumor cell suspensions into syngeneic BALB/c mice. After five and ten in vivo selections for liver colonization...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1007/BF00132928
更新日期:1984-07-01 00:00:00
abstract::The colon carcinoma cell line HT-29 was used to explore the potential of interleukin-4 (IL-4) and tumor necrosis factor alpha (TNF-alpha) to modify integrin expression and adhesive functions of tumor cells in vitro and to examine corresponding metastatic effects in vivo. Preincubation of HT-29 cells with 100 U/ml of I...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1007/BF00121213
更新日期:1996-03-01 00:00:00
abstract::Vascularization of solid tumors is thought to occur by sprouting or intussusceptive angiogenesis, co-option of existing vessels, and vasculogenic mimicry after the onset of tumor hypoxia, when the tumor radius exceeds the oxygen diffusion distance. In contrast, here we show that individual endothelial cells that are i...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1007/s10585-009-9257-8
更新日期:2009-01-01 00:00:00
abstract::The growth of metastatic prostate cancer cells in the bone involves an intimate interaction between the tumor cells and various elements of the bone microenvironment, resulting in increased rate of bone turnover and rapid tumor growth. The alpha(v)beta3 integrin has been shown to play an important role in tumor growth...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1023/a:1025461507027
更新日期:2003-01-01 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::Previous studies from our laboratory have demonstrated that metastatic propensity is significantly influenced by the genetic background upon which tumors arise. We have also established that human gene expression profiles predictive of metastasis are not only present in mouse tumors with both high and low metastatic c...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1007/s10585-005-6244-6
更新日期:2005-01-01 00:00:00
abstract::Recombinant murine interferon beta (MuIFN-beta) given i.v. efficiently inhibited both pulmonary arrest and formation of lung colonies of NL-17, a highly metastatic variant of mouse colon adenocarcinoma 26. NL-17 was rather resistant to MuIFN-beta in vitro and was highly resistant to natural killer cells of mice even t...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1007/BF00117793
更新日期:1990-03-01 00:00:00