Abstract：
:It is generally agreed that most malignancies, particularly those that arise "spontaneously", are caused by randomly occurring mutations at specific sites of the genome. Hence oncogenesis of these spontaneous tumors can be described by stochastic mathematical models. In this paper we offer a mathematical approach to oncogenesis. A stochastic model was developed to calculate the number of mutations required for malignant transformation. This model demonstrates that the two hit model, as originally proposed by Knudson for retinoblastoma in children, is not tenable for tumors in adults. Our results show that malignant transformation is more likely to be due to a specific set of four mutations. This stochastic model is compatible with most current views on oncogenesis and most phenomena in oncology.
journal_name
Anticancer Resjournal_title
Anticancer researchauthors
Derkinderen DJ,Boxma OJ,Koten JW,Den Otter Wsubject
Has Abstractpub_date
1990-03-01 00:00:00pages
497-504issue
2Beissn
0250-7005issn
1791-7530journal_volume
10pub_type
杂志文章abstract：BACKGROUND:Prognosis of renal cell carcinoma (RCC) differs within the same stage and grade. Our aim was to investigate the incidence of COX-2 in primary RCC tumors at different stages according to the occurrence of metastasis, and the impact of this biomarker on the survival of RCC patients. PATIENTS AND METHODS:The c...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2010-07-01 00:00:00
abstract：BACKGROUND:The purpose of this study was to examine the efficacy of anticoagulant fondaparinux postoperatively for preventing recurrence after curative resection of colorectal cancer with lymphnode metastasis. PATIENTS AND METHODS:The records of 279 patients who underwent curative resection of colorectal cancer with l...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.11120
更新日期：2016-10-01 00:00:00
abstract：BACKGROUND/AIM:We evaluated the clinical impact of FOLFOXIRI regimen aiming for conversion surgery in patients with unresectable multiple colorectal liver metastasis (CRLM). PATIENTS AND METHODS:A total of 42 patients with unresectable multiple CRLM who received chemotherapy with molecular agents were included in the ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.13703
更新日期：2019-09-01 00:00:00
abstract：BACKGROUND:In vitro studies have indicated that epidermal growth factor receptor (EGFR) may intensify signaling output by the receptor's overexpression, heterodimerization with HER-2, or autocrine expression of ligands. The purpose of the present study was to evaluate the correlation between EGFR and its related protei...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2004-01-01 00:00:00
abstract：:The present study was undertaken to evaluate the significance of grooved nuclei as an additional diagnostic criterion for primary breast carcinoma as well as their association with tumor grade in cytologic material obtained by fine needle aspiration (FNA). Cytologic slides of 105 cases of breast carcinoma (89 ductal, ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1996-11-01 00:00:00
abstract：:Hexamethylmelamine (HMM) has previously been shown to be active against ovarian, breast and small cell lung cancer. However HMM dose not have aromatase-inhibitory activity. A newly developed HMM derivative, 2-N,N-dimethylamino-4, 6-bis (1-H-imidazol-1-yl)-1,3,5-triazine (SAE9), was found to have direct antitumor activ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1993-05-01 00:00:00
abstract：:Cytotoxicity of L-canavanive, a structural analogue of L-arginine, was tested by means of (1) inhibition of DNA synthesis in Balb/c-3T3 cell line and (2) inhibition of mitosis in peripheral blood lymphocytes in culture. The cytostatic nature of inhibition caused by L-canavanine was indicated by the complete recovery o...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1981-01-01 00:00:00
abstract：:The time course and characteristics of the tumor marker CASA (Cancer Associated Serum Antigen) during the menstrual cycle were analysed. We investigated whether hormonal influences in women and the score of this tumor marker ought to be considered in diagnosis. It could be demonstrated that CASA is not influenced by p...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1997-07-01 00:00:00
abstract：:The present study assessed the immunohistochemical expression of ras p21 oncoprotein in 41 cases of benign and cancerous lesions of the prostate gland and correlated p21 expression with survival of patients operated for prostate cancer. Our results show that p21 is detected in both categories of patients, the expressi...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1994-09-01 00:00:00
abstract：OBJECTIVE:The expression of oestrogen and progesterone receptors in patients with adenocarcinoma of the uterine cervix was examined in order to determine their influence on prognosis and to evaluate the association between the steroid receptor expression and various clinicopathologic parameters. PATIENTS AND METHODS:O...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2010-04-01 00:00:00
abstract：BACKGROUND:The presence of cytokeratin (CK)-positive cells in the bone marrow (BM) of breast cancer patients is an independent prognostic marker for long-term survival. While the exact nature of these cells remains under investigation, their persistence after chemotherapy is linked to decreased survival, making them a ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2005-05-01 00:00:00
abstract：BACKGROUND:Live animal studies using an inoculation model of breast cancer indicate that anaesthetic drugs and techniques differentially affect cancer metastasis, inversely related to Natural Killer (NK) cell and T lymphocyte levels. Clinical histological studies demonstrate that the distribution of these immune cells ...
journal_title：Anticancer research
pub_type： 杂志文章,随机对照试验
doi：
更新日期：2015-03-01 00:00:00
abstract：:The aim of our study was to establish a simple method for routine analysis of c-erbB-2 gene expression in tumour samples. We constructed a plasmid for the in vitro synthesis of competitor RNA to be used as an internal exogenous control during the RT-PCR detection of c-erbB-2 expression. The competitor RNA harbors a 19...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1996-03-01 00:00:00
abstract：:VP-16 and ICRF-193 are different types of antitumor topoisomerase II inhibitors, being cleavable and non-cleavable complex-stabilizing types, respectively. To examine the possibility of enhancing the efficacy of combination chemotherapy, we carried out simultaneous and sequencial treatment of cells with the two drugs....
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1996-09-01 00:00:00
abstract：:Vesnarinone (3,4-dihydro-6-[4-(3,4-dimethoxybenzoyl)-1-piperazinyl]-2(1H)- quinolinone), a quinolinone derivative, is an orally active inotropic agent used in Japan for the treatment of chronic heart failure. Recently, it has been reported that vesnarinone induces differentiation and apoptosis in certain types of leuk...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1998-01-01 00:00:00
abstract：:The incorporation and metabolism of delta-6-desaturase substrate and product, [1-14C]-linoleic (18:2n-6) and [1-14C]-gamma-linolenic acid (18:3n-6), was examined in NIH-3T3 cells and the DT subclone which differs only in the presence of the v-Ki-ras oncogene. Similar amounts of post delta-6 and delta-5 desaturase meta...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1993-07-01 00:00:00
abstract：BACKGROUND:Oleanolic acid is a triterpenoid that has shown in vitro cytotoxic activity against human tumour cells and is known to be present in many higher plants. MATERIALS AND METHODS:Oleanolic acid is known to have some biological potential including anticancer property. Oleanolic acid was isolated from the ethyl a...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2014-08-01 00:00:00
abstract：BACKGROUND:Heterodimer cooperation between ErbB receptors has limited clinical usefulness of receptor tyrosine kinase inhibitors (TKIs), erlotinib and gefitinib in the treatment of cancer. However, combination treatment of TKIs with gamma-tocotrienol targets multiple ErbB receptors and significantly inhibit +SA murine ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2010-02-01 00:00:00
abstract：AIM:To examine patterns of clinical practice in locally advanced esophageal cancer among US radiation oncologists after publication of the CROSS trial. MATERIALS AND METHODS:US radiation oncologists were surveyed on 13 questions pertaining to the management of esophageal cancer. Respondents' demographics and their cli...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.12996
更新日期：2018-11-01 00:00:00
abstract：BACKGROUND:The frequency of epithelial cell adhesion molecule (EpCAM) expression was investigated in non-small cell lung cancer (NSCLC) cells and human tissues, and its clinicopathological significance in adenocarcinoma of the lung was evaluated. MATERIALS AND METHODS:EpCAM expression was analysed by reverse transcrip...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2009-05-01 00:00:00
abstract：:A pharmacokinetic study on cis-(glycolato-O,O)/ (4R,5R)-4,5-bis(aminomethyl)-1,3-dioxolane-2-spiro-1'- cyclohexane]platinum(II) (SKI 2032R) was performed in dogs. A single dose of 2.0 mg/kg of SKI 2032R was administered i.v. bolus to three beagle dogs. Plasma samples were analyzed for platinum by flameless atomic abso...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1996-05-01 00:00:00
abstract：BACKGROUND:The aim of this study was to investigate the expression of thymidine phosphorylase (TP), a known angiogenic factor for endothelial cells, in gastric carcinoma cells and tumor-associated stromal cells. MATERIALS AND METHODS:Sixty-six gastric carcinomas were studied. TP expression was assessed with the P-GF.4...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2006-09-01 00:00:00
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：BACKGROUND:Alterations of mitochondrial DNA (mtDNA) have been found in cancer patients, therefore informative mtDNA mutations could serve as biomarkers for the disease. MATERIALS AND METHODS:The two hypervariable regions HVR1 and HVR2 in the D-Loop region were sequenced in ten paired tissue and plasma samples from bre...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2011-12-01 00:00:00
abstract：:We report a rare case of primary intracranial alveolar rhabdomyosarcoma (ARMS) in the right temporal lobe of a 51-year-old male. ARMS is one of 3 histological subtypes of rhabdomyosarcoma that most commonly presents in older children and younger adults. To our knowledge, there have been no prior published reports of p...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.13441
更新日期：2019-06-01 00:00:00
abstract：:The content, composition and physicochemical characteristics of glycosaminoglycans in human rectum and rectum carcinoma were investigated by chemical analyses, enzymic treatments, chromatographic and electrophoretic techniques. The overall glycosaminoglycan content was increased about 2 fold in neoplastic tissues comp...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1995-09-01 00:00:00
abstract：BACKGROUND:Lung cancer tissues are often infiltrated by B lymphocytes, but it is not clear whether these infiltrations represent tumor-specific immune response or a nonspecific reaction. MATERIALS AND METHODS:The serological analysis of recombinant cDNA expression libraries (SEREX) were previously modified using a sev...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2006-09-01 00:00:00
abstract：:Four sorts of tumor proliferation-related markers were studied in 50 papillary carcinomas of the thyroid, and the results were correlated with the histologic subtypes of papillary thyroid carcinoma, which have been shown to be associated with the prognosis of the disease. The mitotic count analyzed by light microscopy...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1993-01-01 00:00:00
abstract：:African-American women with breast cancer consistently show a shortened survival when compared with Caucasians with breast cancer, however it is not clear whether this is due to socioeconomic factors or to racial differences in tumor biology. Cyclin D1 overexpression has been demonstrated in 60-80% of female breast ca...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2001-09-01 00:00:00
abstract：:From 1980 to 1987, 243 evaluable patients with pT1, pT2 (less than 3 centimeters in diameter), N0, M0, invasive breast cancer were treated with "quadrantectomy" with axillary dissection followed by electron beam radiation therapy (QUART) at the St. Bortolo Hospital, Vicenza. Stage II patients received adjuvant chemoth...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1991-07-01 00:00:00
