Abstract：
BACKGROUND:Tumor cells expressing excessive anionic-charged sialic acid can be potentially targeted by cationic polymers which may inhibit tumor growth. In the present study, three new families of cationic polymers were synthesized to assess their effects on prostate cancer cells. MATERIALS AND METHODS:Cationic polymers effects on PC3 prostate cancer cells and normal prostate epithelial cell (RWPE-1) were assessed using cell viability, DNA fragmentation, apoptosis assays and confocal microscopy. RESULTS:The dextran-based polymer (Dex-PA-3X) (40 μg/ml) and the vinyl-based PolyAETA (5 μg/ml) induced a significant reduction in cell viability in PC3 cells (85% and 50%, respectively; p<0.05) in comparison to RWPE-1 cells. Furthermore, Dex-PA-3X induced a 50%, and PolyAETA induced a 35% increase in cell death in PC3 cells compared to RWPE-1 cells measured by DNA fragmentation assay. Lower concentrations of both polymers induced apoptosis while higher concentrations induced both apoptosis and necrosis by immunostaining. Confocal microscopy indicated the localization of Dex-PA in the cytoplasm of PC3 but not RWPE-1 cells, while PolyAETA was seen in both PC3 and RWPE-1 cells, but at lower intensity in RWPE-1 cells. CONCLUSION:The newly-synthesized cationic polymers Dex-PA-3X and PolyAETA selectively bind to, reduce viability and induce cell apoptosis in prostate cancer cells, suggesting that targeting negatively-charged tumor cells could be a novel strategy to treat prostate cancer.
journal_name
Anticancer Resjournal_title
Anticancer researchauthors
Gakhar G,Liu H,Shen R,Scherr D,Wu D,Nanus D,Chu CCsubject
Has Abstractpub_date
2014-08-01 00:00:00pages
3981-9issue
8eissn
0250-7005issn
1791-7530pii
34/8/3981journal_volume
34pub_type
杂志文章abstract：:The aim of our study was to investigate the role of electroporation in the treatment of cisplatin resistant tumor cells in vitro. For this purpose we used well characterized human ovarian carcinoma IGROV I cells and their resistant subclone IGROV 1/DDP. The cells were either continuously exposed to cisplatin or treate...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1998-11-01 00:00:00
abstract：:A pilot study to evaluate the predictive value of Indium-111-labelled somatostatin analogue [DTPA-D-Phe1]-octreotide scintigraphy (OctreoScan111) in the Octreotide treatment of hormone-refractory prostatic adenocarcinoma was initiated. Ten patients were investigated with OctreoScan111 with regard to disease extension ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1998-01-01 00:00:00
abstract：AIM:Maximal cytoreduction to minimal residual tumor is the most important determinant of prognosis in patients with advanced stage epithelial ovarian cancer (EOC). Preoperative prediction of suboptimal cytoreduction, defined as residual tumor >1 cm, could guide treatment decisions and improve counseling. The objective ...
journal_title：Anticancer research
pub_type： 杂志文章,多中心研究
doi：
更新日期：2011-11-01 00:00:00
abstract：:Norcantharidin[3], the demethylated product of cantharidin[1] has been used for the treatment of hepatoma, carcinomas of esophagus and gastric cardia, leukopenia and hepatitis. Since the enzyme xanthine oxidase is involved in the diseases mentioned above, and the reactive oxygen species produced by the enzyme induces ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1997-05-01 00:00:00
abstract：:The specificities and surface markers of murine autocytotoxic cells induced by in vitro culture with interleukin 2 (IL2) were studied. Culturing murine spleen cells with recombinant human IL2 resulted in the generation of cytotoxic cells which killed syngeneic lymphoblasts and syngeneic activated macrophages (M phi). ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1989-03-01 00:00:00
abstract：BACKGROUND/AIM:We performed a phase II study of triple-drug combination chemoradiotherapy (DCF-R therapy), in which docetaxel was added to the standard chemoradiotherapy (cisplatin [CDDP]/5-fluorouracil [5-FU]) for unresectable advanced esophageal cancer. PATIENTS AND METHODS:Sixty-one patients with unresectable advan...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.14256
更新日期：2020-05-01 00:00:00
abstract：BACKGROUND:The safety and efficacy of second-line chemotherapy for treating patients with small cell lung cancer (SCLC) and interstitial lung disease (ILD) have not been elucidated to date. PATIENTS AND METHODS:Between January 2005 and September 2013, we analyzed 23 patients with SCLC and ILD who received second-line ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2015-11-01 00:00:00
abstract：BACKGROUND:Despite improvements in chemotherapy and surgery in the treatment of osteosarcoma, satisfactory results are still difficult to achieve. New therapeutic modalities need to be developed for the improvement of these treatments. TRAIL (TNF-related apoptosis inducing ligand) is known as a selective apoptosis indu...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2007-03-01 00:00:00
abstract：BACKGROUND:Monoclonal Antibody (MAb) 29-13 reacts with the human sarcoma-associated antigen (SAA) p200. We report here engineering and primary characterization of a single chain antibody (scFV2913). MATERIALS AND METHODS:The scFV2913 recombinant gene, consisting of VH-linker-VK, was constructed with RT-PCR. This gene ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1996-11-01 00:00:00
abstract：:In this study, we set out to determine if the differential sensitivities to CPT between a radioresistant (Sk-Mel-3) and a radiosensitive (HT-144) human melanoma cell line, and also between cultures with a different growth phase in each cell line, were related to endogenous differences in cellular transport of CPT or t...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1998-07-01 00:00:00
abstract：:Two experiments were performed with a chemically induced hepatoma in the rat. In the first, tumors were inoculated subcutaneously into both flanks. After 10 days, when all rats had tumors, treatment was given intravenously on two successive days with 10 mg carmustine/kg body weight/day. All control rats displayed grow...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1994-09-01 00:00:00
abstract：BACKGROUND/AIM:There is no definite consensus regarding management of hepatocellular carcinoma (HCC) with portal vein tumor thrombosis (PVTT). This study aimed to compare clinical outcomes according to initial treatment modality for treatment of naïve HCC combined with subsegmental (Vp1)/ segmental (Vp2) PVTT with live...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.12808
更新日期：2018-08-01 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：BACKGROUND/AIM:The aim of this study was to determine the natural history of benign thyroid nodules using ultrasonography. PATIENTS AND METHODS:The records of 223 patients with benign thyroid nodules treated at the Kochi Medical School from 2010 to 2012 were reviewed retrospectively. Repeated ultrasonography was perfo...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.13317
更新日期：2019-04-01 00:00:00
abstract：:The intratumor and intramuscle distribution of blood flow and plasma volume was studied via isotope techniques in a transplantable rat fibrosarcoma. Administration of two prostaglandin synthesis inhibitors, indomethacin and diclofenac-sodium, had different effects. Indomethacin changed muscle plasma volume significant...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1984-05-01 00:00:00
abstract：:The high glucose consumption of tumour cells has been well known since Warburg's investigations. Nevertheless, the reason for this phenomenon is still a matter of speculation. Glucose uptake of tumour cells is mainly mediated by GLUT1. In this study, the question of whether glucose uptake as well as expression of GLUT...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2005-09-01 00:00:00
abstract：BACKGROUND:We used non-linear kernel discriminant analysis (KDA) to predict the outcome of 134 axillary node-negative primary breast cancer patients not treated with adjuvant therapy in a non censored database. MATERIAL:Posterior probabilities of relapse at 5 years were estimated using probabilistic neural networks (P...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2000-05-01 00:00:00
abstract：BACKGROUND:Initial U.S.A. breast cancer screening rates have risen, but not repeat screening, especially among low-income minority populations. Latinas are particularly at-risk of underscreening. Consequently, late-detection is common, with increased risk of dying after diagnosis. Why women with low-income, particularl...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2007-11-01 00:00:00
abstract：UNLABELLED:BACKGROND/AIM: Recent evidence indicates that inflammation is a hallmark of cancer. Tumor-associated neutrophils (TANs) contribute to tumor invasion. However, whether TANs and lymph node metastasis are related is unknown. Intranodal lymphatic vessel density (LVD) is significantly correlated with tumor progre...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2014-12-01 00:00:00
abstract：:Mutations in the p53 gene occur frequently in bladder cancers. Better prognostic factors are needed to help select appropriate treatment for patients with TCC stage T1. Paraffin-embedded tumors from 73 patients with TCC stage T1 were processed for two-parameter flow cytometry, measuring both p53 protein and DNA. There...
journal_title：Anticancer research
pub_type： 临床试验,杂志文章
doi：
更新日期：1994-11-01 00:00:00
abstract：BACKGROUND:Transformed cells have abnormalities in the survival pathways contributing to drug resistance. These abnormalities include p53 mutations and increased focal adhesion kinase (FAK) expression. Because FAK regulates cell survival via p53-dependent and -independent pathways, it was hypothesized that combined the...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2006-07-01 00:00:00
abstract：:A series of 2-triazenothiophene derivatives was prepared and tested to evaluate their biological activity. Two compounds inhibited the proliferation of leukemia, lymphoma and solid tumor-derived cell lines at micromolar concentrations, whereas none of the compounds were active against HIV-1. Compound 3c inhibited DNA,...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1999-05-01 00:00:00
abstract：BACKGROUND:Breast cancer (BC) is the most common cancer in women, and the hormone receptor status is one of the most important prognostic factors in patients with BC. The aim of this study was to establish whether a relationship exists between the hormone receptor rate and the main classic risk factors in patients with...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2008-01-01 00:00:00
abstract：:Wet ashing of K562 cell suspensions by means of a sulphonitroperchloric acid digestion for electrothermal atomic absorption spectrometry of platinum has been achieved. The limit of detection was about 1 ng platinum per 10(6) cells. Platinum concentrations in K562 cells were measured after exposure to platinum coordina...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1991-01-01 00:00:00
abstract：:A sarcomatoid carcinoma cell line (SAR-HCV) was established from a malignant liver lesion of a patient infected with hepatitis C virus. SAR-HCV cells were successfully xenografted in SCID mice. Vimentin was strongly positive in cultured SAR-HCV cells, the primary tumour lesion and the xenografts. Hepatocyte paraffin 1...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2011-01-01 00:00:00
abstract：:To evaluate the treatment-related late sequelae including gonadal function and second malignancy 94 patients with stage I and II testicular seminoma treated with postorchiectomy radiation therapy were analyzed retrospectively. The 10-year cause specific, disease free and actuarial survival rates were 100, 98.5 and 96....
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1997-09-01 00:00:00
abstract：:Urinary gonadotropin peptide (UGP) has been measured in gynecological and urological cancers, but its usefulness in the diagnosis of cancers of digestive organs has not been investigated. In this report, UGP was measured by sandwich enzyme immunoassay in 311 patients, including 166 patients with cancers of digestive o...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1996-07-01 00:00:00
abstract：:Caspase-3 is a key executioner cysteine protease involved in programmed cell death or apoptosis. A ribozyme to human caspase-3 was designed, tested by in vitro cleavage, and transfected into a drug-resistant variant (DLKP-A5F) of a human lung carcinoma cell line (DLKP). By both stable and transient transfection, this ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2004-03-01 00:00:00
abstract：BACKGROUND:Although paclitaxel was given triweekly in phase II trials prior to its approval for gastric cancer in Japan, it is currently more often delivered by a weekly schedule in the second-line setting. PATIENTS AND METHODS:A phase II trial with response rate as the primary end-point was conducted. Patients with m...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2007-07-01 00:00:00
abstract：:Overexpression of acyl-coenzyme A:cholesterol acyltransferase (ACAT) results in increased cholesteryl ester levels and has been involved in a variety of cancer types. As a consequence, cholesterol metabolism has raised interest as a potential target for cancer treatment. Inhibition of ACAT results in suppression of pr...
journal_title：Anticancer research
pub_type： 杂志文章,评审
doi：10.21873/anticanres.13482
更新日期：2019-07-01 00:00:00
