Abstract：
:The metabolic transformations of labeled pyridoxine by hepatoma cells were studied. Buffalo rats were fed ad libitum a commercially prepared pyridoxine sufficient diet for 20 days at which time they were inoculated intramuscularly with hepatoma 7777 cells in both hind leg muscles. After tumor development, 50 microCi [6-3H] pyridoxine. HCl or 5 microCi [4,5-14C] pyridoxine. HCl was injected intraperitoneally per rat. Groups of animals were subsequently sacrificed at defined time intervals up to 9 days. Vitamin B6 labeled tumor metabolites were acid extracted and separated on a muBondapak C18 column by ion pairing reverse phase high performance liquid chromatography. A novel vitamin metabolite contributing up to 28.5% of extractable radioactivity was found with retention time different than any of the known vitamin B6 compounds. Its pattern of synthesis in vivo from labeled pyridoxine was PN leads to PNP leads to PLP leads to PMP leads to X. Preliminary GC-mass spectral data suggested the unknown consisted of more than one species. This communication reports on the metabolism of vitamin B6 and the isolation, synthesis in vivo and possible significance of the novel metabolite to the economy of the tumor cells.
journal_name
Anticancer Resjournal_title
Anticancer researchauthors
Tryfiates GPsubject
Has Abstractpub_date
1983-01-01 00:00:00pages
53-8issue
1eissn
0250-7005issn
1791-7530journal_volume
3pub_type
杂志文章abstract：:A new treatment is proposed for mice bearing a Krebs ascitic tumor targeting on both the malignant cells and the host cells having the "cancer functioning" (cancer cells) (Anticancer Res 9: 941-946 1989). It is shown that the treatment (a) injure specifically via 64Cu transmutation the DNA of the malignant cells and f...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1989-07-01 00:00:00
abstract：AIM:This study aimed at exploring several brain metastatic prognostic scores in patients with renal cell carcinoma. PATIENTS AND METHODS:We retrospectively analyzed data of 93 metastatic renal cell carcinoma patients who were diagnosed with brain metastases between October 2005 and July 2016 who received targeted ther...
journal_title：Anticancer research
pub_type： 杂志文章,多中心研究
doi：10.21873/anticanres.13431
更新日期：2019-06-01 00:00:00
abstract：:Two metastasis-associated proteins, CD44v6 and NM23-H1, are expressed by normal lymphoid cells, the former serving as activation marker and the latter as a constitutive protein. CD44v6 is considered as a marker of poor prognosis of various hematological cancers but its expression was not demonstrated in childhood acut...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2001-01-01 00:00:00
abstract：:In tumor cells, doxorubicin (DOX) is excreted by P-glycoprotein (P-gp) and the multidrug resistance-associated protein (mrp). Both transporters might also be involved in cellular regulatory volume decrease (RVD). To study the hepatobiliary excretion of DOX during RVD, isolated livers of Wistar and multidrug resistance...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2001-07-01 00:00:00
abstract：BACKGROUND:The recent prevalence of ultrasonography and fine-needle aspiration biopsy (FNAB) has facilitated the detection and diagnosis of papillary thyroid carcinoma. However, there are still cases that are preoperatively misdiagnosed and treated as benign nodules because ultrasonographic and FNAB findings do not pro...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2007-03-01 00:00:00
abstract：BACKGROUND:Photodynamic therapy (PDT) and gene therapy protocols are separately under clinical evaluation for treatment of brain malignancies. Here, the potential of a novel combination technique, photo-induced delivery of macromolecules and genes to glioblastoma cells, is evaluated. MATERIALS AND METHODS:The photoche...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2005-01-01 00:00:00
abstract：:In order to define genes which mediate liver tropism of colon cancer metastasis we have compared the transcriptional profile of 5600 full-length genes using the Affymetrix HuGene FL array technology of the non-metastatic colon cancer cell lines KM12C and the two metastatic cell lines, KM12SM and KM12L4A, which are der...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2001-07-01 00:00:00
abstract：:The proteasome inhibitor, bortezomib, is known to be effective in the therapy of various neoplasms. The objective of this study was the analysis of the ex vivo activity of bortezomib in paediatric acute lymphoblastic leukaemia (ALL), in comparison to paediatric acute myeloid leukaemia (AML). A total of 159 patients en...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2010-06-01 00:00:00
abstract：BACKGROUND:The optimal treatment for locoregionally recurrent rectal cancer after curative surgery has not yet been defined. The definition of prognostic factors could lead to the selection of an aggressive therapeutic approach in patients with favourable prognosis alone. PATIENTS AND METHODS:The records of thirty-nin...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1999-03-01 00:00:00
abstract：:A report that effects of butyrate on some cells may be mediated by activation of AMP-activated protein kinase (AMPK) prompted this study which examines if other AMPK activators can induce differentiation and inhibit proliferation of colon cancer cells in a manner similar to butyrate. Using induction of alkaline phosph...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2011-02-01 00:00:00
abstract：:We have reported the presence of a CD4+ subpopulation of Natural Killer cells (NK) in humans. These cells also express HIV coreceptors CCR5 or CXCR4 and are infectable by HIV-1. Infection is productive and persistent in vitro and in vivo. Infected people under therapy have evidence of viral DNA in their NK pool. In vi...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2003-05-01 00:00:00
abstract：AIM:We aimed to investigate whether 3'-deoxy-3'-[(18)F]fluorothymidine ([(18)F]FLT) positron emission tomography (PET) can estimate thymidine kinase 1 (TK1) activity after thymidylate synthase (TS) inhibition by 5-fluorouracil (5-FU) in a mouse tumor model. MATERIALS AND METHODS:Nude mice with HT29 tumors were injecte...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2014-02-01 00:00:00
abstract：BACKGROUND/AIM:The lipophilic, orally bioavailable camptothecin analogue gimatecan is characterized by improved efficacy over conventional camptothecins on human tumor xenografts. Gimatecan produced excellent outcomes orally with prolonged, low-dose, daily treatments. The aim of this study was to assess the antitumor e...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.12917
更新日期：2018-10-01 00:00:00
abstract：BACKGROUND:DNA topoisomerase II alpha (topo II alpha) is associated with active cell proliferation of mammalian cells. Topo II alpha overexpression has been reported in a number of human malignancies and is considered to be related to their biological behaviors. MATERIALS AND METHODS:We examined the expression of topo...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1999-05-01 00:00:00
abstract：BACKGROUND:MicroRNAs (miRNAs), which are endogenously expressed regulatory noncoding RNAs, have an altered expression in tumor tissues. MiRNAs regulate cancer-related processes such as cell growth and tissue differentiation, and therefore, might function as oncogenes or tumor-suppressor genes. The aim of our study was ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2010-09-01 00:00:00
abstract：BACKGROUND/AIM:To investigate whether high-dose-rate (HDR) intracavitary brachytherapy (IBT) dose ratios can predict treatment outcomes in patients with stage IIB cervical cancer. PATIENTS AND METHODS:Ninety-three patients treated with weekly cisplatin-based concurrent chemoradiotherapy and HDR IBT were analyzed. Pote...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.11325
更新日期：2017-01-01 00:00:00
abstract：:Immunoreactivity of monoclonal anti-cytokeratin KL1, PKK1, K8.12 and anti-actin antibodies in 101 cases of diseased human breast lesions showed irregular keratin distribution in luminal cells of terminal ductal-lobular unit and basal layer cells of the interlobular and main duct. Actin staining was confined to myoepit...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1991-11-01 00:00:00
abstract：:Reduction of nitroblue tetrazolium by blood monocytes was significantly increased following post-operative radiation therapy for breast cancer. Attachment and ingestion of yeast particles by monocytes was not affected. Exposure of purified monocytes in vitro to 13 Gy did not significantly affect NBT reduction of yeas...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1982-07-01 00:00:00
abstract：BACKGROUND:The correlation between telomerase activity and antitumor effects was investigated in cell lines of human gastric (MKN-28, MKN-45, and MKN-74) and breast (T-47D, MCF-7, ZR75-1) cancers to evaluate the possibility of utilizing this enzyme to predict tumor response to chemotherapy. MATERIALS AND METHODS:After...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2000-01-01 00:00:00
abstract：BACKGROUND:Both liposomal doxorubicin (LD) and docetaxel (D) have a broad range of activity against solid tumors, including advanced pancreatic cancer (APC), as single agents, while their combination has produced encouraging response rates in the treatment of several malignancies. We have conducted a Phase-II study in ...
journal_title：Anticancer research
pub_type： 临床试验,杂志文章
doi：
更新日期：2002-11-01 00:00:00
abstract：:The effects of the gypenosides (Gyp), a component of Gynostemma pentaphyllum Makino, on the cell viability, cell cycle and induction of apoptosis were investigated in human colon cancer colo 205 cells. Gyp was cytotoxic to colo 205 cells with an IC50 of 113.5 microg/ml. The decreasing number of viable cells appeared t...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2006-11-01 00:00:00
abstract：:Small cell lung cancer is known to carry a high capacity to metastasize in various sites including bone marrow. We here review the respective sensitivities of classical cyto-histological methods and of more recently described techniques such as cell cultures, immunostaining with monoclonal antibodies and magnetic reso...
journal_title：Anticancer research
pub_type： 杂志文章,评审
doi：
更新日期：1994-11-01 00:00:00
abstract：AIM:The aim of this study was to investigate the effects of medium-chain triglycerides (MCTs) on chemically-induced hepatic carcinogenesis (HCC) in mice. MATERIALS AND METHODS:In a first set of experiments, mice were treated with diethylnitrosoamine intraperitoneally at two weeks of age. They were fed chow containing ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.13880
更新日期：2019-12-01 00:00:00
abstract：BACKGROUND:The effects of resveratrol (a natural polyphenol) on angiogenesis in rat gliomas were investigated by color Doppler ultrasound (CDUS). The correlation among the tumor growth rate, macroscopic angiogenesis measured by CDUS and microscopic angiogenesis was assessed by immunohistochemical staining. MATERIALS A...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2006-03-01 00:00:00
abstract：:During the last 50 years median survival for metastatic breast cancer has not varied and remains 2-3.5 years. To assess the clinical benefit of salvage systemic therapy a retrospective analysis of metastatic breast cancer patients all homogeneously treated with a commonly used first-line anthacycline-containing cytoto...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1999-07-01 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：:The use of salvage chemotherapy in advanced non small cell lung cancer (NSCLC) is controversial. However, many patients need to be treated in order to achieve relief of their symptoms. Docetaxel (taxotere) is one of the most active drugs for the treatment of advanced NSCLC and several studies have also shown its effec...
journal_title：Anticancer research
pub_type： 临床试验,杂志文章,多中心研究,评审
doi：
更新日期：2000-03-01 00:00:00
abstract：:We have recently reported that phagocytosis of killed Saccharomyces cerevisiae, baker's yeast, induced apoptosis in human breast cancer cell lines MCF-7, ZR-75-1 and HCC70. In this study we have evaluated the effect of treatment with MGN-3, a modified arabinoxylan from rice bran, on phagocytosis and yeast-induced apop...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2005-03-01 00:00:00
abstract：:CYFRA 21-1 was evaluated in 115 untreated patients with malignant pleural effusions (96 with primary lung cancer and 19 with non lung cancer) and 99 patients with benign pleural effusions. The levels of pleural fluid CYFRA 21-1 were from 1 to 385 times higher than those in serum, in all the examined patients. The mean...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1996-07-01 00:00:00
abstract：:The events during the settlement of BSp73AS (AS) tumor cells in the syngeneic rat lung are described. Although AS cells show highly invasive behavior in vitro, subcutaneous primary tumors grow solidly without detectable metastatic spreading. However, AS cells when applied to the syngeneic rats via the tail vein give r...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1986-07-01 00:00:00
