Abstract：
:Several signaling pathways have been recognized in normal c-kit-mediated signal transduction following stem cell factor (SCF) stimulation including Janus kinase (JAK)/signal transducer and activator of transcription (STAT), mitogen-activated protein kinase (MAPK) and phosphoinositol 3-kinase (PI-3 K) pathways. In gastrointestinal stromal tumor (GIST), c-kit activation is considered to play a central role in its tumorigenesis. However, the signal transduction cascades specific for the SCF-independent c-kit activation in GIST remains to be elucidated. In this study, we examined for the expression of the activated form of STAT3 [phospho-STAT3 (tyr 705)] in eleven cases of GIST by immunohistochemistry. All GISTs had strong nuclear and variable cytoplasmic expression of phospho-STAT3 (tyr 705). Survival and proliferation of two established primary GIST cell lines with c-kit exon-11 mutations were then assessed for their response to inhibitors of c-kit (STI-571), JAK 2 (Tyrphostin AG490), MAPK kinase (PD98059) and PI-3 K(LY294002). GIST cells showed significant inhibition of proliferation and apoptosis when treated with STI571 or AG490 but not in cells treated with PD98059 or LY294002. Bcl-2 was expressed in all of the GIST cases (11 out of 11) and was down-regulated in the primary GIST cells following treatment with AG490. This study demonstrates that STAT3 is constitutively activated in GIST and JAK2 blockade leads to tumor growth inhibition and apoptosis indicating the involvement of the JAK/STAT signaling pathway in GIST cellular survival.
journal_name
Anticancer Resjournal_title
Anticancer researchauthors
Paner GP,Silberman S,Hartman G,Micetich KC,Aranha GV,Alkan Ssubject
Has Abstractpub_date
2003-05-01 00:00:00pages
2253-60issue
3Beissn
0250-7005issn
1791-7530journal_volume
23pub_type
杂志文章abstract：:Measurement of CA125 is well established in the diagnosis and follow-up of ovarian cancer. CA125 determination is usually performed with the monoclonal antibodies OC125 and M11. For the IMMULITE OM-MA chemoluminsence assay (DPC Biermann, Bad Nauheim, Germany) the monoclonal antibody OV185 is used. We analysed CA125 se...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1999-07-01 00:00:00
abstract：BACKGROUND:A double blind placebo RCT of adjuvant treatment of the matrix metalloproteinase inhibitor, Marimastat, in patients with unresectable colorectal liver metastases showed no significant effect on survival. There was a statistically significant survival advantage for the marimastat-treated patients with musculo...
journal_title：Anticancer research
pub_type： 临床试验,杂志文章,随机对照试验
doi：
更新日期：2003-01-01 00:00:00
abstract：BACKGROUND:Cancer stem cells (CSCs) have a high tumorigenic ability to form patient-derived tumor xenografts (PDXs). PDXs are an attractive pre-clinical model, but gene expression and biological behavior of cancer cells in the tumor will change during establishment and passage of PDXs. MATERIALS AND METHODS:Human colo...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2016-07-01 00:00:00
abstract：BACKGROUND:Melanoma is characterized by high resistance to chemotherapy. The aim of this study was to investigate combined effects of doxorubicin and parthenolide on melanoma cells. MATERIALS AND METHODS:Thiazolyl blue tetrazolium bromide (MTT) assay and flow cytometry were used to evaluate viability. The p53 levels a...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2013-08-01 00:00:00
abstract：BACKGROUND:Granulosa cell tumors (GCT) are rare malignant neoplasms of the ovaries with, usually, indolent biological behavior. PATIENTS AND METHODS:The epidemiological, clinical and pathological features of 34 patients with adult GCT, from the registry of the HeCOG, were analyzed retrospectively for their prognostic ...
journal_title：Anticancer research
pub_type： 杂志文章,多中心研究
doi：
更新日期：2008-03-01 00:00:00
abstract：BACKGROUND:To investigate the differences between two rat yolk sac tumor cell lines with different radiosensitivities and p53 status in sensitivity to high-LET heavy-ion beam and in sensitizing effect of etoposide or cisplatin in combination with heavy-ion beam. MATERIALS AND METHODS:NMT-1 (wild-type p53 cell) is a pa...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2010-06-01 00:00:00
abstract：:The aim of this study was to evaluate the usefulness of image-guided robotic stereotactic radiosurgery for the local control of unresectable liver metastases from colorectal and non-colorectal cancer. Twenty-seven consecutive patients (median age 62 years, range 47-80 years) with liver metastases considered unsuitable...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2009-08-01 00:00:00
abstract：BACKGROUND/AIM:Gemcitabine is a drug commonly used to treat pancreatic cancer but chemoresistance to it is a common clinical issue. KML001 (sodium meta-arsenite) has demonstrated certain antitumor activity. The objective of the study was to evaluate the influence of KML001 on the anticancer activity of gemcitabine agai...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2015-01-01 00:00:00
abstract：:The purpose was to evaluate efficacy and safety of carbon ion radiotherapy (C-ion RT) in patients with locally advanced olfactory neuroblastomas (ONBs). This study was a sub-analysis of the Japan Carbon-Ion Radiation Oncology Study Group Study (1402 HN, UMIN000024473). Clinical data of T4 ONBs treated with C-ion RT at...
journal_title：Anticancer research
pub_type： 杂志文章,多中心研究
doi：10.21873/anticanres.12399
更新日期：2018-03-01 00:00:00
abstract：:The time course and characteristics of the tumor marker CASA (Cancer Associated Serum Antigen) during the menstrual cycle were analysed. We investigated whether hormonal influences in women and the score of this tumor marker ought to be considered in diagnosis. It could be demonstrated that CASA is not influenced by p...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1997-07-01 00:00:00
abstract：BACKGROUND:Tenascin-C (TNC) is an extracellular matrix glycoprotein, usually derived from myofibroblasts in the cancer microenvironment. Recently, however, the significance of tumor-derived TNC in initiation of cancer metastasis was disclosed. We investigated the clinical significance of cancer-derived TNC in colorecta...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2013-05-01 00:00:00
abstract：BACKGROUND:Bacillus Calmette-Guérin (BCG) vaccine is a non-specific immunostimulant which has been used clinically in the treatment of melanoma. In this communication, the antimelanoma activity of BCG was related to its fibronectin-binding properties and mimicked using gelatin nanoparticles. MATERIALS AND METHODS:The ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1999-03-01 00:00:00
abstract：:We examined the optimal timing for the enhancement of antitumor effects of CDDP analogues, cis- diammine-1,1- cyclobutane dicarboxylate platinum (II); CBDCA combined with hyperthermia against the CD-1 mice bearing Ehrlich ascites tumor (EAT) cells in vivo. The prolonged tumor doubling time was observed when two modali...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1996-01-01 00:00:00
abstract：:Several human and murine tumor cell lines were evaluated in an in vitro cytotoxicity assay as prescreens for fermentation extracts and pure materials subsequently tested in vivo against P388 leukemia or B16 melanoma. Each material, regardless of its in vitro cytotoxicity, was evaluated in vivo. At the criteria levels ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1988-05-01 00:00:00
abstract：:TPS was determined by immunohistochemistry in 44 different tissues (normal and pathological) from various organs such as cervix, endometrium, breast, stomach, bowel and bladder. TPS was expressed in several physiologic situations: in different phases of the endometrial cycle and in cervical metaplasia. In other organs...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1994-03-01 00:00:00
abstract：BACKGROUND:An acidic arabinogalactan from European mistletoe (Viscum album L, VAL; 1.34 x 10(6) Dalton) was studied in detail because its immunological properties are poorly characterised. MATERIALS AND METHODS:Flow cytometric studies focussed on PS-activated proliferation of human lymphocytes measured via incorporati...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1999-09-01 00:00:00
abstract：BACKGROUND/AIM:Cancer incidence and mortalities are growing worldwide, therefore research and development of more effective and less invasive treatments, such as photodynamic therapy, are needed. Herein, we investigated the methylene blue (MB) photoactivation effects in lung epithelial cells (BEAS-2B) and lung adenocar...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.13522
更新日期：2019-07-01 00:00:00
abstract：AIM:To evaluate the usefulness of Ki-67 index and survivin as predictive prognostic factors for rectal cancer treated with preoperative chemoradiotherapy. PATIENTS AND METHODS:The Ki-67 index and survivin expression were examined in patients with stage II/III rectal cancer (n=46) by immunohistochemistry. Patients were...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.12409
更新日期：2018-03-01 00:00:00
abstract：BACKGROUND/AIM:To describe real clinical outcomes when using systemic therapy to treat non-small cell lung cancer (NSCLC) patients who have anaplastic lymphoma kinase (ALK) fusion gene mutation. PATIENTS AND METHODS:We performed a retrospective chart review from April 2008 to March 2019 sourced from 16 medical institu...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.14029
更新日期：2020-02-01 00:00:00
abstract：BACKGROUND:Gastric cancer is the third most frequent type of neoplasia. In northern Brazil, the State of Pará has a high incidence of this type of neoplasia. Limited data are available so far on the genetic events involved in this disease. MATERIALS AND METHODS:Dual-color fluorescence in situ hybridization (FISH) for ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2005-11-01 00:00:00
abstract：:Melanoma is a tumor of continuously increasing incidence for which new methods of imaging and targeted therapy are widely sought. Radioiodinated methylene blue is a promising tracer, showing selective uptake in human pigmented melanoma cells. We performed 131I-labeling of the tracer using 1% methylene blue injection U...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2008-11-01 00:00:00
abstract：:Lipomas are the most common benign tumors of the mesenchyme; they are composed of mature lipocytes. Benign fatty tumours can arise in any location in which fat is present. Most patients affected by such tumours are in their fifth or sixth decade of life. Only rarely are children affected. Lipomas may be single or mult...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2006-09-01 00:00:00
abstract：BACKGROUND:The size of colorectal polyps is important in the clinical management of these lesions. When using a conventional ruler (the tool of pathologists worldwide), we have previously found unacceptably high intra- and inter-observer variations in assessing the size of phantom polyps. The aim of this study was to a...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2008-05-01 00:00:00
abstract：BACKGROUND/AIM:Non-pegylated liposomal doxorubicin (NPLD) has demonstrated antitumour activity equivalent to conventional doxorubicin and a significantly lower risk of cardiotoxicity. This phase II trial was performed to evaluate the activity and the safety of NPLD and ifosfamide combination in patients with metastatic...
journal_title：Anticancer research
pub_type： 杂志文章,多中心研究
doi：
更新日期：2015-01-01 00:00:00
abstract：:Approximately 85% of patients with advanced ovarian cancer will experience recurrence of the disease. In 311 patients CA125 serum levels were determined at follow up investigation in our department. A sensitivity of 92% and specificity of 89% were calculated. Reflecting the further course of disease, specificity could...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1997-07-01 00:00:00
abstract：:Human vaginal malignant melanoma represents rare gynecological malignancies of poor prognosis. We have established a melanoma tumor line in nude mice, designated Mela-1, and have examined the histological and biological characteristics of this tumor. The Mela-1 tumor has preserved the histological, histochemical and b...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1994-07-01 00:00:00
abstract：BACKGROUND:Primary prostate carcinoma cells constitutively secrete interleukin-6 (IL-6), and high levels of IL-6 receptor are detected in prostate carcinoma tissues. These findings have implicated IL-6 in the growth and differentiation of prostate carcinomas. Herein, we examined the regulation of IL-6 receptor complex ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1998-11-01 00:00:00
abstract：:This study was undertaken to investigate the role of the human ras family gene product [P21] in various benign, precancerous and malignant skin lesions. A streptavidin-biotin peroxidase method was performed using the monoclonal antibody (Mab)Y13259 in paraffin tissue sections of a total of 69 skin lesions (5 benign hy...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1995-05-01 00:00:00
abstract：BACKGROUND:Human carcinomas not only consist of neoplastic epithelial cells but also of tumor stroma, which may play an important role in tumor-progression. Whereas the tumor surrounding stroma is generally believed to represent a reactive component induced by tumor cell derived factors, a contribution of neoplastic ce...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2001-07-01 00:00:00
abstract：:Game theory can be a powerful tool for generating testable hypotheses concerning biological systems. We present a simple game that has many features analogous to a developing cellular system. The game mimics random turning on of genes in cells. Despite the randomness explicit in the mechanism, the game nonetheless res...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1999-11-01 00:00:00
