Abstract：
:The sodium iodide symporter (NIS) is a plasma membrane protein that mediates active uptake of inorganic iodide from plasma into thyroid cells. Expression of the NIS gene in tumor cells may provide a novel mechanism for treating cancer. Previously, we cloned cDNA of rat NIS into the retroviral vector LXSN, transduced human and murine tumor cells, and demonstrated 50-60% killing effect of 131I in cells expressing NIS. However, monolayer cultures of cancer cells cannot adequately represent some aspects of the growth and microenvironmental conditions of three-dimensional (3D) solid tumors. On the other hand, animal models are time consuming and costly and not always reasonable for the first estimation of scientific approaches. An in vitro model of multicellular tumor spheroids growing as a 3D-structure provides an important link between monolayer cell cultures and animal experiments. This model is especially crucial for suicide systems utilizing radioisotopes as the killing agent because the deposition of radiation energy causes DNA damage in cells more effectively in 3D-structure. In this study we used a retroviral vector for introduction of the rat NIS gene into DU145 prostate cancer cells. The liquid-overlay technique was exploited to create a tumor spheroid model. We established that uptake of 125I in monolayer culture cells containing the NIS was 40- to 50-fold greater than in DU145 cells without NIS. Using a clonogenic assay for monolayer culture, we demonstrated a 50-70% killing effect of 131I on DU145 cells expressing the NIS gene. The same dose of 131I resulted in complete death of tumor spheroids composed of the DU145-NIS cells. Our data demonstrates significant anti-tumor efficacy of novel radioisotope concentrator gene therapy in a multicellular spheroid model, thus proving to be a useful link between the in vitro system and in vivo animal model.
journal_name
Anticancer Resjournal_title
Anticancer researchauthors
Mitrofanova E,Hagan C,Qi J,Seregina T,Link C Jrsubject
Has Abstractpub_date
2003-05-01 00:00:00pages
2397-404issue
3Beissn
0250-7005issn
1791-7530journal_volume
23pub_type
杂志文章abstract：:We investigated the signal transduction pathway to low-dose radiation-induced apoptosis in vitro in the human peripheral primitive neuroectodermal tumor (pPNET) cell line with wild-type p53 established in our laboratory. Apoptosis was induced by 2Gy irradiation in an almost p53-dependent manner in this model except fo...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2002-09-01 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：:The design of treatment for patients with squamous cell carcinoma of the head and neck (SCCHN) is based on prognostic factors, today essentially performance status and TNM status. It becomes increasingly important to optimise treatment and find the appropriate level of treatment and resource consumption for each patie...
journal_title：Anticancer research
pub_type： 杂志文章,评审
doi：
更新日期：1996-07-01 00:00:00
abstract：BACKGROUND/AIM:Only 30-50% of patients with sentinel lymph node (SLN) metastases present with further axillary lymph node metastases. Therefore, up to 70% of patients with positive SLN are overtreated by axillary dissection (AD) and may suffer from complications such as sensory disturbances or lymphedema. According to ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.12694
更新日期：2018-07-01 00:00:00
abstract：BACKGROUND:This report presents results of a study delineating changing trends in radical external beam radiotherapy usage for prostate cancer between the 1996-1998 and 1999-2001 Patterns of Care Study (PCS) survey periods in Japan. MATERIALS AND METHODS:Out of the 694 patients comprising the 1996-1998 and 1999-2001 P...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2005-09-01 00:00:00
abstract：:Tumor angiogenesis seems to be an important factor in determining therapeutic effectiveness and patient prognosis. An abundance of data on tumor angiogenesis is available and it clearly shows that most human solid tumors are heterogeneously vascularized and oxygenated and contain hypoxic regions. Such regions and area...
journal_title：Anticancer research
pub_type： 杂志文章,评审
doi：
更新日期：2001-11-01 00:00:00
abstract：:This review presents the clinical pharmacokinetics of the marketed therapeutic monoclonal antibodies used in oncology. Aspects regarding absorption, tissue distribution, elimination as well as factors influencing pharmacokinetics, pharmacodynamics and kinetic interactions are also discussed. ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2005-05-01 00:00:00
abstract：:Multidrug resistance (mdr) constitutes the major obstacle to successful cancer treatment. The ability of fifteen newly-synthesised N-acylphenothiazine derivatives to inhibit the transport activity of P-glycoprotein was studied by flow cytometry in a resistant mouse lymphoma cell line. A standard functional assay with ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2002-09-01 00:00:00
abstract：:The role of serum tumor markers in lung cancer has not been defined. It is widely believed that almost all neoplasms produce at least a few substances, but the identity of most of the known substances has not been correlated with a positive role in either the diagnosis or prognosis of patients with these neoplasms. We...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1998-07-01 00:00:00
abstract：:Myc is an oncogenic transcription factor that promotes tumorigenesis. Recently, a dominant negative form of Myc (Omomyc) was shown to cause regression of lung tumors in a mouse model of lung cancer caused by KRAS mutation, suggesting that Myc might be a potential therapeutic target to treat the KRAS lung cancer. Howev...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2010-10-01 00:00:00
abstract：BACKGROUND:Transient hypocalcaemia is a frequent complication after total knee arthroplasty (TKA). In this study, we investigated the factors associated with the development of hypocalcaemia after TKA in order to explore its clinical significance and treatment. PATIENTS AND METHODS:A retrospective analysis of the chan...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2016-03-01 00:00:00
abstract：BACKGROUND/AIM:Several epidemiological studies have reported the chemopreventive potential of biochanin A, in cancer development and progression. We investigated the anticancer potential of combination of biochanin A and temozolomide against U-87 MG and T98 G [glioblastoma multiforme (GBM)] cells. MATERIALS AND METHOD...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.13079
更新日期：2019-01-01 00:00:00
abstract：:The phospholipases are an important class of enzymes for growth factor and oncogene intracellular signalling. The anti-tumor drug suramin was found to inhibit phosphatidylcholine hydrolysis and trans-phosphatidylation by solubilized rat brain phospholipase D (PLD) with an IC50 of 15 microM. An azo analogue of suramin,...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1993-07-01 00:00:00
abstract：:Screening for hereditary tumours provides a basis for secondary prevention. In 1985, the Foundation for the Detection of Hereditary Tumours was established in The Netherlands to coordinate screening in families with hereditary tumours. In the initial period of four years a large number of families were collected. Regi...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1990-03-01 00:00:00
abstract：BACKGROUND/AIM:The presence of ascites in ovarian cancer patients is considered a negative prognostic factor. The underlying mechanisms are not clearly understood. MATERIALS AND METHODS:The amount of ascites was evaluated, preferably, using diffusion-weighted MRI at primary diagnosis in a retrospective cohort of 214 w...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.13800
更新日期：2019-11-01 00:00:00
abstract：AIM:To determine depression in patients with choroidal melanoma (CM) treated with proton beam radiotherapy. PATIENTS AND METHODS:This was a cross-sectional study including 50 patients with CM (50% males, mean age=49.88±6.34 years) and 46 age- and sex-matched healthy controls (52% males, mean age=48.60±8.05 years). Par...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.12562
更新日期：2018-05-01 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：AIM:To investigate the possibility of enhancing an anti-metastatic effect of 5-fluorouracil (5-FU) on colorectal cancer (CRC) cells by combining it with continuous calcium supplementation. MATERIALS AND METHODS:Optimal doses of 5-FU with/without lactate salt (CaLa) were determined via clonogenicity and 3-(4,5-dimethyl...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.11295
更新日期：2017-01-01 00:00:00
abstract：:Hypoxia, a condition of reduced oxygen concentration, is observed in many physiological and pathophysiological states. However, there is rather limited information regarding hypoxic effects in the processes of immortalization and senescence of human cells. Here, the effects of hypoxia induced by either 1.5% O2, or by ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2006-05-01 00:00:00
abstract：BACKGROUND:The aim of this study was to evaluate whether human papilloma virus (HPV) testing at LLETZ for CIN can be useful to identify patients with high risk of recurrent disease. MATERIALS AND METHODS:In 62 women treated with LLETZ for CIN the status of the resection margins was recorded and related to the HPV stat...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2003-09-01 00:00:00
abstract：AIM:The suitability of Papanicolaou staining and of hematoxylin staining for DNA single-cell cytometry was investigated in comparison to Feulgen staining. MATERIALS AND METHODS:Ten normal cervical smears and ten cervical smears containing cells of a squamous cell carcinoma in situ were analyzed. The integrated optical...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2011-01-01 00:00:00
abstract：BACKGROUND/AIM:Methionine inhibits proliferation of breast and prostate cancer cells. This study aimed to determine cell cycle effects of methionine and selectivity for cancer cells. MATERIALS AND METHODS:MCF-7 (breast), LNCaP (prostate), and LS-174 (colon) cancer cells (wild-type p53), DU-145 (prostate) and SW480 (co...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2010-06-01 00:00:00
abstract：BACKGROUND:Molecular mechanisms responsible for carcinogenesis in upper urinary tract urothelial carcinoma (UUTUC) are not yet clear. This study aimed to examine and correlate the subcellular localization of activin A, maspin, and the androgen receptor (AR) with demographic characteristics, pathological grade, and stag...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2011-05-01 00:00:00
abstract：:Ten patients with advanced renal cell carcinoma were given combined chemoendocrine treatment with tegafur and tamoxifen. Patients were orally administered 800 mg/body tegafur and 20 mg/body tamoxifen daily. One patient was assessed as CR, three as PR, two as NC and four as PD. One out of two patients with estrogen rec...
journal_title：Anticancer research
pub_type： 临床试验,杂志文章
doi：
更新日期：1995-07-01 00:00:00
abstract：BACKGROUND:The effectiveness of mammographic screening in women aged over 50 years has been confirmed in the United States and Europe, but its effectiveness in women aged from 40 to 49 years remains controversial. The optimum age for effective screening of subjects for breast cancer by mammography in Japan was studied ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2000-09-01 00:00:00
abstract：:Major drawbacks to present-day cancer chemotherapy are its intrinsic lack of selectivity for tumour cells, resulting in severe damage to normal rapidly dividing cells, and the widespread emergence of drug resistance. Here experimental evidence is presented demonstrating that PB-100, a beta-carboline alkaloid, selectiv...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1993-11-01 00:00:00
abstract：UNLABELLED:The aim of the present study was to evaluate the effectiveness and safety of hepatic re-resection for breast cancer liver metastases. PATIENTS AND METHODS:Between January 2004 and December 2014 seven patients were submitted to liver re-resection for breast cancer liver metastases at our Center. The main inc...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2015-12-01 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：OBJECTIVE:To evaluate the existence of an association between cervicovaginal infections and precancerous lesions of the uterine cervix, through determination of prevalent cervicovaginal micro-organisms, alone and in association with human papillomavirus (HPV), in patients with abnormal and normal vaginal cytology. PAT...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2006-11-01 00:00:00
abstract：:It has been shown recently that various myeloid leukemia cells can be induced by numerous compounds to differentiate terminally into non-growing mature cells. Furthermore, some of these compounds have been found to be clinically useful for the therapy of certain types of myeloid leukemia. To improve this new method of...
journal_title：Anticancer research
pub_type： 杂志文章,评审
doi：
更新日期：1994-05-01 00:00:00
