Abstract：
:The structural specificities of the natural polyamines putrescine (Put), spermidine (Spd) and spermine (Spm) for cell growth are rather stringent, suggesting that appropriate structural analogues of these polycations could serve as potential antineoplastic agents via polyamine antagonism. Norspermidine (Nspd), a homologue of spermidine, had significant antitumor activity against L1210 leukemia, 3LL carcinoma and EL4 lymphoma in mice. The observed antitumor activity of the compound was potentiated by administration of a - difluoromethylornithine (DFMO), an irreversible inhibitor of ornithine decarboxylase. DFMO treatment alone, or in combination with Nspd reduced tumoral Put and Spd levels by greater than 50% in all three tumor models. In animals receiving both Nspd and DFMO, Nspd accumulation in the tumor cells was increased by 50% or more compared to cells from animals receiving Nspd only. Co-administration of Spd, but not Put, abolished the antitumor activity of L1210 observed with DFMO and Nspd treatment, and also reduced the tumoral accumulation of Nspd. These results indicate that appropriate structural analogues of the natural polyamines may be useful as antineoplastic agents.
journal_name
Anticancer Resjournal_title
Anticancer researchauthors
Prakash NJ,Bowlin TL,Davis GF,Sunkara PS,Sjoerdsma Asubject
Has Abstractpub_date
1988-07-01 00:00:00pages
563-8issue
4eissn
0250-7005issn
1791-7530journal_volume
8pub_type
杂志文章abstract：BACKGROUND/AIM:Mouse double minute 2 (MDM2) and prostate-specific membrane antigen (PSMA) are currently under investigation as individual therapeutic targets due to their overexpression in many cancer types, as well as their pro-tumorigenic effect on cells. Recently, knockdown of PSMA was linked to a decrease in MDM2 a...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2016-03-01 00:00:00
abstract：AIMS:(a) To assess the expression patterns of HER2/neu, steroid receptors (ER and PR), Ki67 and p53 in invasive ductal cancer (IDC) and IDC associated with carcinoma in situ (IDC/DCIS) and (b) to determine if there is a differential expression of these molecular markers between IDC and IDC/DCIS. MATERIALS AND METHODS:...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2005-05-01 00:00:00
abstract：:Amitriptyline, a tricyclic antidepressant, was able to reverse the multidrug resistance efflux pump of human colon cancer subline SW 620 and multidrug resistant (mdr) mouse lymphoma cells by decreasing rhodamine 123 efflux. The inhibitory effect of amitriptyline on the efflux pump was dose dependent. An investigation ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1996-01-01 00:00:00
abstract：BACKGROUND:The efficacy and toxicity of adjuvant chemo-immunotherapy using dendritic cells and activated killer cells are not clear in post-surgical primary lung cancer patients. PATIENTS AND METHODS:Pathologically diagnosed N2 lung cancer patients were selected for postsurgical adjuvant chemo-immunotherapy. The activ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2008-03-01 00:00:00
abstract：BACKGROUND:The aim of this study was to assess the metallothionein (MT), maintenance protein 2 (Mcm-2) and Ki-67 expressions in adrenocortical adenomas and carcinomas in comparison to normal tissue and evaluate the correlations between these markers of proliferation and between these markers and tumor diameter. MATERI...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2008-09-01 00:00:00
abstract：BACKGROUND/AIM:In the last years, the use of Image Guided Stereotactic Radiotherapy (IG-SBRT) in patients with metastatic prostate cancer has increased. In this study, we aimed to assess the role of IG-SBRT in terms of local control and safety in patients with metastatic prostate cancer. MATERIALS AND METHODS:Primary ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.12572
更新日期：2018-05-01 00:00:00
abstract：:Malignant mesothelioma of the tunica vaginalis testis is a rare and aggressive asbestos-related malignancy that may pose difficult diagnostic problems. After 16 years of asbestos exposure, a 38-year-old petrochemical worker came to our notice with acute right testicular pain and swelling, simulating torsion of the spe...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2008-03-01 00:00:00
abstract：AIM:To generate a survival score for patients with breast cancer treated with stereotactic radiosurgery (SRS) alone for brain metastases. PATIENTS AND METHODS:Seven factors were evaluated in 34 patients, namely age, performance score, number of brain metastases, maximum diameter of all brain metastases, location of br...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2016-03-01 00:00:00
abstract：BACKGROUND:Various prognostic factors have been investigated in order to predict the minority of male germ cell tumor (GCT) patients who will develop resistant disease. However, no prognostic system has been proven accurate. MATERIALS AND METHODS:Paraffin-embedded tissue specimens, obtained from primary lesions during...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2009-02-01 00:00:00
abstract：BACKGROUND:A woman, mother of one at the age of 19 years, was diagnosed with mammary adenocarcinoma in the right breast in 1985 at the age of 37 years. The patient underwent surgery (quadrantectomy), lymphadenectomy and radiotherapy. In 1999, an adenocarcinoma was diagnosed in the left breast, followed by adequate rese...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2015-10-01 00:00:00
abstract：:Pyrimidine nucleoside phosphorylase (PyNPase) is an enzyme which converts 5'-deoxy-5-fluorouridine (5'-DFUR) to 5-fluorouracil (5-FU), and is induced by various cytokines in tumor cells. We evaluated a combination of 5'-DFUR and lentinan which is widely used as a biological response modifier (BRM), to verify antitumor...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1999-01-01 00:00:00
abstract：:The antitumor effects of the somatostatin structural derivative TT-232 in different rodent and xenograft tumor models are summarized in this report. TT-232 had previously been shown to inhibit the proliferation of a large number of cancer cell lines in vitro and reduce the size of different tumors in animal models in ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2006-09-01 00:00:00
abstract：BACKGROUND:Activating mutations of the BRAF gene have recently been reported in thyroid carcinomas. In particular, V600E mutation is highly prevalent in papillary thyroid carcinoma (PTC). PATIENTS AND METHODS:In this study, the BRAF (V600E) mutation in 54 PTCs was investigated and the relationship between the BRAF mut...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2007-09-01 00:00:00
abstract：BACKGROUND/AIM:Up-regulation of metallo-proteinase (MMP) proteins has been shown in various types of solid cancers and the genotype of MMP1 has been associated with the risk of solid cancers. The contribution of MMP1 genotype to lung cancer has been investigated in various countries, though, to our knowledge, not in Ta...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.12215
更新日期：2018-01-01 00:00:00
abstract：:The members of the matrix metalloproteinase family (MMP) have the ability to degrade macromolecules of the extracellular matrix and are responsible for tumor invasion and infiltration, limiting the effectiveness of the neurosurgical resection of brain tumors. Among the glial brain tumors, astrocytomas and oligodendrog...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2003-09-01 00:00:00
abstract：:The in vitro cytotoxicity and differential cellular sensitivity of a series of new N1-methyl, N1-allyl, N1-2-chloroethyl and N1-propargyl nitrosourea derivatives of diamino acids were determined in the National Cancer Institute's primary antitumor drug screen. The compounds tested showed an in vitro anticancer activit...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1995-05-01 00:00:00
abstract：BACKGROUND:MicroRNAs are able to control vital tumor biological processes, such as proliferation, tissue transformation and cell migration, as well as apoptosis. One of the micro RNAs, namely miR-1, has been classified as a tumor suppressor, however, preliminary data did not confirm this finding in ovarian cancer (OC) ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2016-07-01 00:00:00
abstract：BACKGROUND/AIM:The present study aimed to identify hypoxia-regulated microRNAs (HRMs) in vitro and investigate the clinical role of candidate HRMs in patients with gastroesophageal cancer (GEC). MATERIALS AND METHODS:microRNA expression changes induced by hypoxia in human GEC cell lines were measured with microarrays ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2016-02-01 00:00:00
abstract：BACKGROUND:A gastrostomy feeding tube is one method for long-term feeding support in patients undergoing radio(chemo)therapy for head and neck cancer (HNC). The aim of this study was to analyze the safety of prophylactic gastrostomy tube placement and usage in HNSCC patients. PATIENTS AND METHODS:HNC patients undergoi...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.14059
更新日期：2020-02-01 00:00:00
abstract：BACKGROUND:The prognostic significance of mutant p53 protein, p-glycoprotein (P-gp) and glutathione S-transferase-pi (GST-pi) in patients with unresectable non-small cell lung cancer (NSCLC) has not been established. MATERIALS AND METHODS:We performed immunohistochemical staining of p53, P-gp and GST-pi using transbro...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2003-05-01 00:00:00
abstract：BACKGROUND:A drawback of cancer gene therapy is the failure of toxic gene introduction into a proportion of the tumor cells, resulting in re-progression of the disease. Cancer cell-specificity of the gene introduction has also been problematic. MATERIALS AND METHODS:Previously defined promoter/enhancer DNA of Q5 tumor...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2009-04-01 00:00:00
abstract：UNLABELLED:AIM/ BACKGROUND: To determine the feasibility and safety of intratumoral α-gal glycolipids injection for conversion of human tumors into autologous Tumor Associated Antigens (TAA) vaccine. α-Gal glycolipids bind anti-Gal--the most abundant antibody in humans. Pre-clinical studies indicated that injected α-ga...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2012-09-01 00:00:00
abstract：BACKGROUND:Therapy for patients with hepatic metastases from colorectal cancer (CRC) remains controversial and may be improved by regional oxaliplatin which proved to be effective when administered systemically to patients with advanced CRC. METHODS:During the current study, which aims to determine the maximum tolerat...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2000-11-01 00:00:00
abstract：:Medullary thyroid carcinoma (MTC), a rare calcitonin-producing tumor, is derived from parafollicular C-cells of the thyroid and is characterized by constitutive Bcl-2 overexpression. The tumor is relatively insensitive to radiation therapy as well as conventional chemotherapy. To date, the only curative treatment is t...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2009-11-01 00:00:00
abstract：:The complication of metastasis from the primary tumor site to the distant organ is difficult to control. Tumor cells usually spread through the vascular system: lymphatics and/or blood; or by direct extension into adjacent sites. Transplantable prostate adenocarcinoma (PA-III) cells in L-W rats produces a tumor in the...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1993-05-01 00:00:00
abstract：:As a new treatment protocol for neuroblastoma, the chimeric (human/mouse) antiganglioside GD2 antibody chl4.18 is being clinically tested. To improve the therapeutic effect of the antibody alone, we are currently investigating the cytotoxicity of glucose-oxidase coupled to the antibody chl4.18 on spheroids of the neur...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1997-07-01 00:00:00
abstract：:Ritonavir, a protease inhibitor, has been successfully applied in the treatment of HIV infection. Reports of dramatic improvement of AIDS-related cancers, such as primary central system lymphoma after radiation therapy as well as Kaposi's sarcoma, led to the recent discovery of the "non viral" antitumor activity of HI...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2005-11-01 00:00:00
abstract：:MDL 103,323, an enclomiphene analog, was tested for binding to the estrogen receptor, inhibition of human tumor xenografts and prevention of carcinogen-induced mammary tumors. MDL 103,323 had 5-6 fold greater affinity for the human estrogen receptor than did either tamoxifen or enclomiphene. Consistent with enhanced b...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1996-09-01 00:00:00
abstract：:MUC1 (DF3 antigen) is a member of a family of high molecular weight glycoproteins. Recent studies have demonstrated that MUC1 is expressed in tumors of various human organs and may function as an anti-adhesion molecule that inhibits cell-to-cell adhesion, inducing tumor metastasis. However, expression patterns of MUC1...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2001-03-01 00:00:00
abstract：AIM:To investigate whether the negative quality of life result of a large randomized exercise intervention study (BREX) was due to considerable spontaneous recovery after adjuvant treatments. PATIENTS AND METHODS:The change in QoL was studied in the control patients of the BREX study (Group 1) and a group of similar f...
journal_title：Anticancer research
pub_type： 杂志文章,多中心研究,随机对照试验
doi：
更新日期：2014-03-01 00:00:00
