Abstract:
:In breast tumors, high levels of leptin have been associated with increased incidence of breast cancer metastasis. Breast cancer metastasis is directly associated with breast cancer cell invasion. However, whether leptin could augment breast cancer cell invasion is not known. Here we showed that leptin increased the invasiveness and the matrix metallo-proteinase-2 (MMP-2) activity of the MCF-7 breast cancer cell line. Leptin stimulated the phosphorylation of extracellular signals regulated kinases, signal transducers and activators of transcription 3 and Jun N-terminal kinases (JNK); however, only inhibition of JNK decreased leptin-mediated activation of MMP-2. Furthermore, inhibition of JNK suppressed leptin-mediated breast cancer cell invasion. Here we report the novel findings that leptin increased invasion of breast cancer cells by activating JNK, resulting in increased MMP-2 activity.
journal_name
Clin Exp Metastasisjournal_title
Clinical & experimental metastasisauthors
McMurtry V,Simeone AM,Nieves-Alicea R,Tari AMdoi
10.1007/s10585-008-9231-xsubject
Has Abstractpub_date
2009-01-01 00:00:00pages
197-204issue
3eissn
0262-0898issn
1573-7276journal_volume
26pub_type
杂志文章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
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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
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journal_title:Clinical & experimental metastasis
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doi:10.1023/a:1016395316362
更新日期:2002-01-01 00:00:00
abstract::Considering recent findings that cyclooxygensase-2 (COX-2) is involved in the progression of colorectal carcinoma (CRC), the role of COX-2 in promoting invasion and angiogenesis was investigated by evaluating the relationship of COX-2 expression to various clinicopathological variables, including plasminogen activatin...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1023/a:1020392309715
更新日期:2002-01-01 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::We previously reported that the adhesion of gastric carcinoma cells to the peritoneum mediated by the alpha3beta1 integrin-laminin interaction is a key step in the initial process of peritoneal metastatic dissemination. Carcinoma cells subsequently invade through the intercellular gaps of mesothelial linings. In this ...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1007/s10585-010-9314-3
更新日期:2010-04-01 00:00:00
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
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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::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
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journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1007/s10585-012-9525-x
更新日期:2013-02-01 00:00:00
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journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1023/a:1011884807746
更新日期:2000-01-01 00:00:00
abstract::Integrins expressed on endothelial cells modulate cell migration and survival during angiogenesis. Integrins expressed on carcinoma cells potentiate metastasis by facilitating invasion and movement across blood vessels. We describe the activities of two synthetic low-molecular-weight peptidomimetics of the ligand amin...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1023/b:clin.0000024764.93092.5f
更新日期:2004-01-01 00:00:00
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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
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journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1023/a:1020923326441
更新日期:2002-01-01 00:00:00
abstract::Breast cancer dissemination can be monitored in patients by detecting circulating and/or disseminated tumor cells. However, bone marrow disseminated tumor cells (BM DTC) may undergo a dormancy during several years before growing (or not) into clinically detectable metastases. We therefore hypothesized that breast canc...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1007/s10585-008-9203-1
更新日期:2008-01-01 00:00:00
abstract::To aid in therapy selection for patients with spinal bone metastases (SBM), predictive models have been developed. These models consider SBM from breast cancer a positive predictive factor, but do not take phenotypes based on estrogen (ER), progesterone (PR) and human epidermal growth factor 2 (HER2) receptors into ac...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章,多中心研究
doi:10.1007/s10585-014-9685-y
更新日期:2015-01-01 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::Brain metastases are the most common intracranial tumors in adults, accounting for more than 50% of all such cases. The approach to and management of brain metastases have evolved significantly in recent years due to several reasons. These include advances in neurosurgical and radiotherapeutic techniques, improved sys...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章,评审
doi:10.1007/s10585-017-9865-7
更新日期:2017-10-01 00:00:00
abstract::The milieu of the liver, and in particular hepatocyte-derived extracellular matrix (hECM), is a critical factor regulating development of liver metastases of colorectal cancer (CRC) cells. The present study has investigated genes altered by hECM in CRC cells and particularly by heparan sulfate chains of hepatocyte pro...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1007/s10585-012-9527-8
更新日期:2013-02-01 00:00:00
abstract:BACKGROUND:Metastasis to bone from endometrial adenocarcinoma is rare, when metastasises it usually locates in axial skeleton. Metastasis to extremities is extremely rare. Additionally the detection of the bone metastasis as a presenting feature is uncommon. In the present study we report the 10th cases of bone metasta...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1007/s10585-007-9061-2
更新日期:2007-01-01 00:00:00
abstract::The mechanisms that control the insidiously invasive nature of malignant gliomas are poorly understood, and their study would be facilitated by an in vivo model that is easy to manipulate and inexpensive. The developing chick embryo brain was assessed as a new xenograft model for the production, growth, and study of h...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1007/s10585-005-7889-x
更新日期:2005-01-01 00:00:00
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journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1007/s10585-007-9075-9
更新日期:2007-01-01 00:00:00
abstract::This short review offers an update on the first and second Multicenter Selective Lymphadenectomy Trials (MSLT-I and MSLT-II) for patients with melanoma, and briefly traces the development of intraoperative lymphatic mapping and sentinel node biopsy. ...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章,多中心研究,评审
doi:10.1007/s10585-012-9503-3
更新日期:2012-10-01 00:00:00
abstract::The urokinase-type plasminogen activator (UPA) and its inhibitor PAI-1 are thought to play an important part in gastric cancer (GC) invasion and metastasis. Little is known about the behavior and prognostic impact of the receptor for UPA (UPAR). The aims of the present study were: (1) to measure UPAR, UPA and PAI-1 le...
journal_title:Clinical & experimental metastasis
pub_type: 临床试验,杂志文章
doi:10.1023/a:1018454305889
更新日期:1997-07-01 00:00:00
abstract::We have investigated the gelatinase profiles and invasiveness of clonal tumour sublines derived from a spontaneously arising mammary tumour in a Balb/cfC3H mouse. The 67NR. 66c14 and 4T1.2 sublines have low, intermediate and high metastatic potential respectively. In Boyden chamber studies, Matrigel invasion was seen ...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1023/a:1011953118186
更新日期:2000-01-01 00:00:00
abstract::The exact cellular and molecular mechanisms involved in melanoma tumorigenesis remain obscure. Previous gene expression profiling analyses performed upon NHEM and human melanoma samples identified WFDC1 as one of the most frequently down-regulated genes. Here we further showed that NHEM readily express WFDC1 but expre...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1007/s10585-009-9273-8
更新日期:2009-01-01 00:00:00
abstract::This article discusses the role of carcinoembryonic antigen (CEA) as a facilitator of the inflammatory response and its effect on colorectal cancer hepatic metastasis. Colorectal cancer accounts for 11% of all cancers in the United States and the majority of deaths are associated with liver metastasis. If left untreat...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章,评审
doi:10.1007/s10585-011-9419-3
更新日期:2011-12-01 00:00:00
abstract::Tumor cell adhesion to the extracellular matrix (ECM) is closely linked with tumor cell invasion and metastasis. In this study, we demonstrate that low levels of adriamycin, a widely used anticancer drug, can inhibit the invasion of highly metastatic K1735-M2 mouse melanoma cells in vitro through a reconstituted basem...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1007/BF00880070
更新日期:1993-01-01 00:00:00
abstract::To evaluate the relationship between the c-kit proto-oncogene product and malignant transformation of human breast tissue, we examined the immunohistochemical expression of the c-kit proto-oncogene product in both malignant and non-malignant breast tissues. The immunohistochemical expression of the c-kit proto-oncogen...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1023/a:1027323210736
更新日期:2003-01-01 00:00:00
abstract::Spatial and temporal oxygen heterogeneity exists in most solid tumour microenvironments due to an inadequate vascular network supplying a dense population of tumour cells. An imbalance between oxygen supply and demand leads to hypoxia within a significant proportion of a tumour, which has been correlated to the likeli...
journal_title:Clinical & experimental metastasis
pub_type: 杂志文章
doi:10.1007/s10585-007-9139-x
更新日期:2008-01-01 00:00:00