Abstract:
:A new transitional cell carcinoma cell line, BCCA-1, derived from a primary urinary bladder carcinoma, was characterized with respect to the growth patterns of in vitro culture, xenotransplantability in SCID mice and immunophenotypic profile. The most unusual finding was a strong tendency of forming many aggregates (multicell spheroids) in the first few days of flask cultures, followed by the attachment of spheroids to monolayer fibroblasts, which came along from stroma of the same tumor. Unlike those reported tumor spheroids whose peripheral layers contained proliferative cells, BCCA-1 spheroids rarely contained mitotic cells. The three-dimensional architecture of BCCA-1 spheroids drastically changed by the attachment of spheroids to fibroblasts, from which epithelial tumor cells spread; this was accompanied by pseudopodia formation and highly aggressive growth of tumor cells. As the fibroblasts degenerated due to overgrowth, tumor cells started to aggregate by retracting their pseudopods and forming many semi-attached spheroids, which eventually detached from the sheet of degenerated fibroblasts. BCCA-1 produced solid tumors as xenografts in SCID mice by subcutaneous injection with as low as 5 x 10(6) cells, suggesting malignant nature of these cells. Immunostaining revealed the expression of MHC-class I, S100 protein, cytokeratin CK7 and CK20, beta-HCG, CEA, epithelial membrane antigen, Le(y) and folate-binding protein by this tumor. While the biological significance of spheroid formation of this kind by BCCA-1 cells remains unclear, it may represent a protection mechanism, by which TCC cells could sustain their viability under unfavorable culture conditions, but proliferate when the conditions became improved, such as the presence of fibroblasts. Our results point to the importance of tumor-associated stromal fibroblasts in TCC tumor progression. Further mechanistic studies to elucidate the mechanism involved in the stromal cell contact mediated-activation of TCC cells in this model system are warranted.
journal_name
Anticancer Resjournal_title
Anticancer researchauthors
Chuang CK,Liao SKsubject
Has Abstractpub_date
2000-03-01 00:00:00pages
749-60issue
2Aeissn
0250-7005issn
1791-7530journal_volume
20pub_type
杂志文章abstract::In the in vivo system, cancer metastasis is a complex multi-step process. We have utilized an in vitro three-dimensional system to study the initial stages of tumour cell invasion. In this communication, the sequence of events in interactions between B16 melanoma cells and normal mouse skin fibroblasts are described. ...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:1986-09-01 00:00:00
abstract:AIM:This study analyzed the effect of metastasectomy on overall mortality (OM) and perioperative outcomes in patients with metastatic renal cell carcinoma (mRCC) treated exclusively with targeted therapy. MATERIALS AND METHODS:Using the Surveillance, Epidemiology, and End Results (SEER) database (2006-2015), Kaplan-Me...
journal_title:Anticancer research
pub_type: 杂志文章
doi:10.21873/anticanres.13604
更新日期:2019-08-01 00:00:00
abstract::Arsenic trioxide (ATO) is an inorganic arsenic derivative that is very effective against acute promyelocytic leukemia. However, organic arsenic derivatives (OAD) have a more favorable toxicity profile than ATO. We herein characterized dipropil-S-glycerol arsenic (GMZ27), a novel OAD. GMZ27 had potent antiproliferative...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2012-07-01 00:00:00
abstract:BACKGROUND/AIM:Advanced anaplastic thyroid cancer (ATC) is a rare, but highly aggressive malignancy, and its prognostic factors need to be further explored. We examined socioeconomic factors' predictive effect for survival performance in stage IV ATC patients. MATERIALS AND METHODS:Using the Surveillance, Epidemiology...
journal_title:Anticancer research
pub_type: 杂志文章
doi:10.21873/anticanres.13198
更新日期:2019-02-01 00:00:00
abstract::K-ras-NIH3T3 cells were more invasive than NIH3T3 cells in a chemotactic invasion assay. Conophylline, a new vinca alkaloid isolated as a ras function inhibitor, inhibited the invasion of K-ras-NIH3T3 cells, while it showed no effect on NIH3T3 cells. Conophylline did not increase expression of fibronectin but induced ...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:1996-01-01 00:00:00
abstract::The limited restriction of eucaryotic chromosomes would facilitate our understanding of the aberrant genomes of genetic diseases and cancer. We have described methods for methylating eucaryotic chromosomes embedded in agarose plugs. We now describe how Cla I methylase can be utilized in a methylation-dependent restric...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:1993-01-01 00:00:00
abstract:BACKGROUND:Genetic polymorphisms of carcinogen-metabolizing enzyme genes have been associated with the risk of oral squamous cell carcinoma and oral leukoplakia. The overexpression of p53 protein is the most common genetic alteration in head and neck cancer. In the present study the combined or isolated presence of glu...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2008-03-01 00:00:00
abstract:BACKGROUND:Because treatment of advanced pancreatic cancer is often unsuccessful, early detection is important. Codon 12 c-Ki-ras mutations have been found in 80-90% of pancreatic cancer cases and are a potential early marker for pancreatic cancer, but obtaining tissue or fluid for analysis can be difficult. We therefo...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:1997-03-01 00:00:00
abstract:BACKGROUND/AIMS:Our study aimed to compared 3-year results following laparoscopy-assisted proximal gastrectomy (LAPG)-double tract anastomosis (DTA) and lower esophageal sphincter-preserving LAPG (LES-LAPG). PATIENTS AND METHODS:Nine patients who underwent LES-LAPG and 23 LAPG-DTA were compared regarding 3-year follow...
journal_title:Anticancer research
pub_type: 杂志文章
doi:10.21873/anticanres.13129
更新日期:2019-01-01 00:00:00
abstract::Human epidemiological studies suggest an association between N-acetyltransferase (NAT) activity and the incidence of bladder and colorectal cancers. In this study, paclitaxel was selected to examine the inhibition of arylamine NAT activity, gene expression and 2-aminofluorene-DNA adduct formation in a human osteogenic...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2004-01-01 00:00:00
abstract:BACKGROUND:Cisplatin-based chemotherapy seems to improve the control of non-small cell lung cancer (NSCLC)-related symptoms, but assessment of symptomatic gain in these patients is often difficult. This study was designed to test a method for the assessment of clinical benefit in elderly advanced NSCLC patients, after ...
journal_title:Anticancer research
pub_type: 临床试验,杂志文章,多中心研究
doi:
更新日期:2002-03-01 00:00:00
abstract::Among the limiting side-effects of anticancer drugs, hematological toxicity is the most frequent. Hematological analysis focuses on nucleated blood cells from mouse peripheral blood or hematopoietic organs (bone marrow, spleen, thymus). We have developed an automated method called A.H.E.A.D. (Automated Hematotoxicolog...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:1990-05-01 00:00:00
abstract:BACKGROUND AND AIM:The Seventh American Joint Committee on Cancer (AJCC)/TNM classification defined that the classification for adenocarcinoma of the esophagogastric junction (AEG) was included in the esophageal category. However, there still remain various classifications in AEG such as the Seventh AJCC/TNM of the eso...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2013-08-01 00:00:00
abstract::The association of anaemia and other predictors of fatigue was studied in cancer patients on palliative treatment. A cohort of 128 consecutive patients (61 men and 67 women, mean age 63.6 years; range 36-85) was interviewed using the Edmonton Symptom Assessment System (ESAS) questionnaire, with 11 items describing can...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2009-07-01 00:00:00
abstract::Rauscher erythroleukemia virus of the mouse was originally isolated from an animal bearing a lymphocytic neoplasm. In order to control extraneous influences on leukemia development, we modulated thymus-dependent and bursa-dependent lymphatic tissues and the granulopoietic and erythropoietic components of hemoreticular...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:1986-07-01 00:00:00
abstract::The compound 317615 x 2HCl, a selective protein kinase Cbeta inhibitor, was not very cytotoxic toward human CaKi1 renal cell carcinoma cells or human HT-29 colon carcinoma cells in monolayer culture. Isobologram analysis was used to determine additivity or synergy of the combination regimens. Exposure of CaKi1 cells t...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2001-09-01 00:00:00
abstract:BACKGROUND:The carcinoembryonic antigen (CEA) is a tumor marker largely utilized for the detection of minimal disease or as a target of immunotherapeutic approaches. In preclinical models CEA has been found to be up-regulated after exposure of cancer cells to 5-fluorouracil (5-FU). In the present study, the clonal dist...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2000-09-01 00:00:00
abstract::p73, a structural homologue of the tumor suppressor gene, p53, has recently been identified and mapped to chromosome 1p36, where genomic loss of heterozygosity (LOH) often occurs in human hepatocellular carcinoma (HCC). To determine whether p73 is involved in the development of HCC and whether there is an inverse corr...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2000-05-01 00:00:00
abstract::Colorectal cancers with high microsatellite instability (MSI-H) have distinct clinical features in terms of their prognosis, recurrence patterns, and sensitivity to immunotherapeutic agents. We present the case of a woman with a left-sided MSI-H colon cancer who had repeated recurrences concentrated exclusively in the...
journal_title:Anticancer research
pub_type: 杂志文章
doi:10.21873/anticanres.11739
更新日期:2017-07-01 00:00:00
abstract:BACKGROUND/AIM:Cytological analysis for diagnosing malignant pleural effusion associated with lung adenocarcinoma (Ad-MPE) shows limited sensitivity and novel diagnostic biomarkers are needed. The aim of this study was to evaluate the profile of four microRNAs (miRNAs) in exosomes in Ad-MPE and benign (non-neoplastic) ...
journal_title:Anticancer research
pub_type: 杂志文章
doi:10.21873/anticanres.13039
更新日期:2018-12-01 00:00:00
abstract:BACKGROUND:Basic fibroblast growth factor (bFGF) is a potent angiogenetic factor which may influence breast cancer evolution. MATERIALS AND METHODS:Serum bFGF, (cut-off 10 pg/ml), was assayed in 166 breast cancer patients at all stages and compared with CA 15.3. RESULTS:In 99 pre-treatment (PT) sera, 39/99 (39.4%) we...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2000-03-01 00:00:00
abstract:AIM:To induce cancer resistance in wild-type mice and detect if the resistance could be inherited to the progeny of the induced resistant mice. Furthermore to investigate the spectrum and immunology of this inherited cancer resistance. MATERIALS AND METHODS:Resistance to with live S180 cancer cells in BALB/c mice was ...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2014-11-01 00:00:00
abstract:BACKGROUND:p27Kip1 is a cyclin-dependent kinase inhibitor which regulates the progression of cells from the G1-into the S-phase in a cell cycle. Loss of p27Kip1 is associated with disease progression and an unfavorable outcome in several malignancies. The purpose of this study was to determine whether p27Kip1 expressio...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2002-09-01 00:00:00
abstract::Gynaecologic oncology day surgery deals primarily with the diagnosis of endometrial, cervical, vulvar and vaginal tumors. Conscious sedation is an important technique used in gynaecologic oncology day surgery. It is often associated with regional anaesthesia. The goals of conscious sedation are to provide effective pa...
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:2004-11-01 00:00:00
abstract::Carcinoma cell metastasis is mediated by increased mobility and invasiveness via epithelial-mesenchymal transition (EMT). Snail, a zinc-finger transcription factor, triggers EMT by directly repressing E-cadherin expression. In this study, the correlation between E-cadherin and Snail expression was investigated. In add...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2008-03-01 00:00:00
abstract:BACKGROUND/AIM:The phosphatidylinositol-3-kinase (PI3K) signaling pathway is frequently activated in cancer. Buparlisib (BKM120), an oral pan-PI3K inhibitor, inhibits proliferation of human cancer in preclinical models. Studies of buparlisib in Western and Japanese adults with advanced solid tumors established a recomm...
journal_title:Anticancer research
pub_type: 杂志文章
doi:10.21873/anticanres.11212
更新日期:2016-11-01 00:00:00
abstract:BACKGROUND:The nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) pathway is critical in inflammation, proliferation and carcinogenesis. There exist three main players in this pathway. The inhibitor of NF-κB (IκB), IκB kinase (IκK)- NF-κB essential modulator (NEMO) complex and NF-κB. The IkK-NEMO co...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2015-05-01 00:00:00
abstract:BACKGROUND/AIM:Muscle relaxants, also known as neuromuscular blocking agents, can block nerve impulses to the muscles and are always used in surgery for general anesthesia. However, the effect of muscle-relaxant anesthetics on cell activity in gastric cancer is currently unknown. The present study aimed to examine and ...
journal_title:Anticancer research
pub_type: 杂志文章
doi:10.21873/anticanres.11831
更新日期:2017-08-01 00:00:00
abstract::Cervical cancer is not considered a hormone-responsive tumor in spite of the presence of estrogen receptors (ER) and progesterone receptors (PgR) in some of them. Endocrine treatments have not achieved clinical responses, however, tamoxifen has been reported to induce PgR and to inhibit cell growth of many cervical ca...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:1993-11-01 00:00:00
abstract:BACKGROUND:The routine use of thin-section, whole-lung computed tomographic scanning helps detect persistent ground-glass nodules (GGNs) co-existing with the target lesion in the underlying lung. PATIENTS AND METHODS:The cases of 10 patients with persistent co-existing GGNs detected on whole-lung computed tomography p...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2014-12-01 00:00:00