Vered Givant-Horwitz

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Laminin is the main non-collagenous glycoprotein found in the basement membrane. The various laminin isoforms are involved in many physiological and pathological processes, including cancer dissemination. The interaction of cancer cells with laminin was identified as a key event in tumor invasion and metastasis. Laminin effects are mediated by laminin(More)
The expression of matrix metalloproteinases (MMP) and their inhibitor TIMP-2 in serous effusions from patients with ovarian carcinoma and its association with clinico-pathological parameters were analysed. The findings in carcinoma cells in effusions were compared with corresponding primary and metastatic lesions. Sixty-six effusions and 96 tissue sections(More)
Activation or suppression of intracellular signaling via the mitogen-activated protein kinase (MAPK) family has been linked to expression of matrix metalloproteinases (MMP) in experimental models, but this association has not been demonstrated in clinical material. The objective of this study was to investigate the possible association between expression(More)
OBJECTIVE Data regarding signal transduction pathways in human tumors are largely confined to cell line studies to date. We have recently reported on the activation and prognostic role of mitogen-activated protein kinases (MAPK) in ovarian carcinoma in effusions. The objective of the present study was to investigate the expression and clinical role of(More)
OBJECTIVE The objective was to investigate the expression (level) and phosphorylation status (activity) of the extracellular-regulated kinase (ERK), c-Jun amino-terminal kinase (JNK), and high-osmolarity glycerol response kinase (p38), their role in the biology of ovarian carcinoma, and their correlation with chemotherapy response. METHODS Sixty-four(More)
We studied the levels of matrix metalloproteinase (MMP)-2, membrane-type (MT)1-MMP, MT2-MMP, and MT3-MMP in 43 malignant pleural and peritoneal effusions using reverse transcription-polymerase chain reaction (RT-PCR) and cellular localization of MT1-MMP in 66 effusion specimens and 85 corresponding primary and metastatic tumors using messenger RNA (mRNA) in(More)
Angiogenic factors play a role in tumor growth and spread. The object of this study was to analyze the correlation between mRNA expression of angiogenesis-related genes and disease outcome in advanced-stage ovarian carcinomas. Sections from 66 primary ovarian carcinomas and metastatic lesions from 41 patients diagnosed with advanced stage ovarian carcinoma(More)
The expression of the M(r) 67,000 laminin receptor, a nonintegrin laminin receptor, was found to be up-regulated in neoplastic cells and to directly correlate with invasion and metastatic potential. In the present study, we investigated the role of laminin receptor in mediating laminin effects and the involvement of the mitogen-activated protein kinases(More)
We studied the role of caveolin-1 in tumor progression and prognosis in serous ovarian carcinoma and the association between caveolin-1 and MDR1 expression. The study involved immunohistochemical analysis for caveolin-1 and P-glycoprotein (P-gp) expression in 75 effusions and 90 solid lesions from ovarian and primary peritoneal carcinoma; in situ(More)
The aim of this study was to analyze the expression of two laminin receptors, the 67kDa laminin receptor (LBP) precursor and the α6 integrin subunit, in effusions and solid tumors of patients diagnosed with serous ovarian carcinoma and to evaluate their predictive role. Eighty-eight effusions and one hundred sixteen primary (= forty-one) and metastatic (=(More)