Abstract：
:The poor response of pancreatic adenocarcinoma to conventional chemotherapy has prompted us to search for innovative treatment approaches. Verapamil, a calcium channel blocker, has been reported to increase the doxorubicin sensitivity of several tumor models with acquired resistance, often in association with decreased efflux resulting in increased net accumulation/retention of doxorubicin. The cell lines used in the present study, PANC-1 of human origin and two cell lines of hamster origin, WD PaCa and PD PaCa, exhibit primary or intrinsic doxorubicin resistance. Verapamil caused a dose-dependent enhancement of doxorubicin's cytotoxicity in the pancreatic cancer-cell lines studied. In PANC-1, WD PaCa, and PD PaCa, respectively, the enhancement was 10.4-, 281.01-, and 15.8-fold at 6.6 microM verapamil and 1.1-, 8.8-, and 6.3-fold at 1.0 microM verapamil. Of note is the finding that the verapamil enhancement of sensitivity to doxorubicin was most marked in our most drug resistant cell line (WD PaCa). However, minimal to no effect on the accumulation or retention of doxorubicin was documented. In addition, the intracellular metabolism of doxorubicin was not found to be altered by verapamil. The present study raises questions concerning the nature and mechanism(s) of primary anthracycline resistance.
journal_name
Anticancer Resjournal_title
Anticancer researchauthors
Chang BK,Brenner DE,Gutman Rsubject
Has Abstractpub_date
1989-03-01 00:00:00pages
347-51issue
2eissn
0250-7005issn
1791-7530journal_volume
9pub_type
杂志文章abstract：:Nonterminal cellular differentiation has recently been shown to induce transformed cells to revert to a benign state and to become resistant to retransformation by chemical and physical carcinogens without limiting their proliferative potential. Nonterminal differentiation also induces native 3T3 T mesenchymal stem ce...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1990-09-01 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：BACKGROUND:Human neuroblastoma and medulloblastoma express abnormal ganglioside patterns especially GD2 and GM2 which are important for tumour growth. We tested the effects of L-cycloserine (L-CS), a potent inhibitor of synthesis of glycosphingolipids, on the growth, viability and expression of GD2 and GM2 in neuroblas...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1999-11-01 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：BACKGROUND:Human papillomavirus (HPV) is a risk factor for tonsillar squamous cell carcinoma (TSCC) and the presence of HPV is correlated to a better clinical outcome. To find additional biomarkers that, together with HPV, predict clinical outcome, the aim of the present study was to evaluate epidermal growth factor re...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2013-04-01 00:00:00
abstract：BACKGROUND:The purpose of this study was to determine the efficacy of a combination of gemcitabine and sirolimus in a mouse model of invasive bladder cancer. MATERIALS AND METHODS:Gemcitabine (50 mg/kg) and sirolimus (1.5 mg/kg) were administered to animals previously exposed to N-butyl-N-4(hydroxybutyl)nitrosamine in...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2011-05-01 00:00:00
abstract：:Curcumin and its reduced derivative tetrahydrocurcumin have been shown to exhibit chemopreventive activity. Cyclooxygenase-2 (COX-2) inhibition in lipopolysaccharide (LPS)- or Porphyromonas gingivalis fimbria-stimulated RAW 264.7 cells was investigated using Northern blot analysis. The fimbria-stimulated expression of...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2008-03-01 00:00:00
abstract：BACKGROUND/AIM:We undertook a case-control and a case-case study to examine the possible association of p53 codon72 polymorphism with the breast cancer risk and resistance to anthracycline-based chemotherapy. PATIENTS AND METHODS:Case-control study: This study enrolled 175 patients with breast cancer treated at the Sa...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2015-03-01 00:00:00
abstract：BACKGROUND:Sixteen 3-styryl-2H-chromenes were subjected to quantitative structure-activity relationship analysis based on their cytotoxicity, tumor selectivity and anti-HIV activity, in order to find their new biological activities. MATERIALS AND METHODS:Cytotoxicity against four human oral squamous cell carcinoma (OS...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2015-10-01 00:00:00
abstract：:Previous studies have revealed that cultured cells treated with lipophilic natural products containing aromatic rings and basic amino group usually yielded multidrug resistant (MDR) variants. These MDR cells overexpress P-glycoprotein (P-gp), most often due to gene amplification or transcriptional activation of mdr/P-...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1994-09-01 00:00:00
abstract：BACKGROUND/AIM:NME/NM23 nucleoside diphosphate kinase 1 (NME1) is a metastasis suppressor gene, exhibiting reduced expression in metastatic cancers and the ability to suppress metastatic activity of cancer cells. We previously identified NME1-regulated genes with prognostic value in human melanoma. This study was condu...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.12956
更新日期：2018-11-01 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：:Chloroform (CHCl3) is an established rodent carcinogen and a prevalent contaminant of chlorine-disinfected drinking water. Thus in the United States CHCl3, along with other trihalomethanes, is regulated not to exceed 100 ppb in potable water. Recently, several studies have shown that CHCl3 also has anti-cancer propert...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1991-03-01 00:00:00
abstract：BACKGROUND:Inconsistent reporting in published meta-analyses compared to registered protocol are poorly understood. The aim of the study was to assess inconsistencies between registered protocols and published reports among oncology drug meta-analyses. MATERIALS AND METHODS:A cross-sectional study was performed includ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.11928
更新日期：2017-09-01 00:00:00
abstract：BACKGROUND:Embryonic stem cell expressed Ras (ERas) oncogene is associated with the tumorigenicity of embryonic stem cells. The aim of this study was to clarify the significance of ERas expression in clinical samples of gastric carcinomas. MATERIALS AND METHODS:Three hundred and few tissues from gastric cancer patient...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2009-06-01 00:00:00
abstract：:Metastatic renal cell carcinoma (RCC) has a poor response to anticancer chemotherapy and radiotherapy. While immunotherapy and molecular targeted drugs have been used as first-line therapy for RCC metastasis, the response rate to these agents is low. We report the case of a patient with lung and bone metastases of RCC...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2011-09-01 00:00:00
abstract：:In pancreatic neoplasias mutations in the first exon (codon 12) of K-ras gene occur at high frequency and seem to have a diagnostic significance. We set up the DGGE conditions to search for these mutations in pancreatic tumor sample DNAs. All samples were directly classified by simply comparing their DGGE patterns wit...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1992-09-01 00:00:00
abstract：:Several studies have reported that high F18-fluorodeoxyglucose (FDG) uptake is predictive of poor prognosis and aggressive features in patients with breast cancer. While these studies evaluated the prognostic value for cases with high FDG uptake, they did not elucidate the meaning of FDG negativity in primary breast c...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2016-06-01 00:00:00
abstract：:We investigated the effects of an exogenous cdk inhibitor, butyrolactone-I, on cell growth inhibition, apoptosis induction, and the regulation of apoptosis in pancreatic cancer cells with mutated p53. Cell growth was dose-dependently inhibited by Butyrolactone-I in PANC-1 and AsPC-1 cells. Phosphorylation of pRb and C...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1998-07-01 00:00:00
abstract：BACKGROUND/AIM:Prognosis for patients with head and neck squamous cell carcinoma (HNSCC) is poor in most cases and has not improved despite advances in therapy. Novel therapeutic approaches are mandatory in order to improve the situation. Everolimus, an inhibitor of mammalian target of rapamycin, as well as the multi-t...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2015-03-01 00:00:00
abstract：:The expression of the protooncogene encoded proteins (c-erbB1, c-erb B2, c-myc, c-fos) and the suppressor gene product p53 was analyzed in 81 human squamous cell carcinomas of the lung and correlated with clinical parameters of the patients (patient survival, presence of metastases and tumor stage) and with biological...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1992-01-01 00:00:00
abstract：:An in vitro pilot study was conducted of the possible utility of combining low doses of cytosine arabinoside (araC) and GM-CSF to stimulate leukemic cell differentiation. Cytosine arabinoside induced macrophage differentiation in some cultures but only when the drug produced substantial cytostatic effects. GM-CSF, whe...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1989-07-01 00:00:00
abstract：BACKGROUND/AIM:Non-pegylated liposomal doxorubicin (NPLD) has demonstrated antitumour activity equivalent to conventional doxorubicin and a significantly lower risk of cardiotoxicity. This phase II trial was performed to evaluate the activity and the safety of NPLD and ifosfamide combination in patients with metastatic...
journal_title：Anticancer research
pub_type： 杂志文章,多中心研究
doi：
更新日期：2015-01-01 00:00:00
abstract：AIM:To identify conditions that induce an increase in the sensitivity of highly Halaven (HAL)-resistant cancer cells compared to sensitive cells. MATERIALS AND METHODS:We observed that drug-resistant KBV20C cells are highly resistant to HAL compared to other antimitotic drugs. The concentration required to treat KBV20...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.11172
更新日期：2016-11-01 00:00:00
abstract：:Non-small-cell lung cancer (NSCLC) ranks as a leading cause of cancer-related death globally. Brain metastases are a frequent complication of NSCLC, with 25-40% of patients developing brain metastases during the course of the disease, often within the first 2 years after diagnosis of the primary tumor. Improvements in...
journal_title：Anticancer research
pub_type： 杂志文章,评审
doi：
更新日期：2015-11-01 00:00:00
abstract：BACKGROUND:Since specific epidermal growth factor receptor (EGFR) somatic mutations have been demonstrated to influence the response to anti-EGFR therapy in non-small cell lung cancer, EGFR gene mutational analysis of different types of neoplasm is under investigation. PATIENTS AND METHODS:EGFR protein expression and ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2006-09-01 00:00:00
abstract：BACKGROUND/AIM:The aim of the study was to evaluate the necessity of gastrectomy including endoscopic submucosal dissection (ESD) scar with margin-negative early gastric cancer (EGC). PATIENTS AND METHODS:We analyzed 83 patients with EGC who received additional gastrectomy after non-curative ESD and evaluated the risk...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.12855
更新日期：2018-09-01 00:00:00
abstract：:The need for dependable prognostic markers in colorectal cancer, both in the advanced as well the as adjuvant setting, is greater than ever. The introduction of new chemotherapeutic agents in the clinic, with different mechanisms of action as well as different side-effect profiles, has made this even more important. A...
journal_title：Anticancer research
pub_type： 杂志文章,评审
doi：
更新日期：2001-11-01 00:00:00
abstract：BACKGROUND/AIM:In this study we aimed to determine if advanced age represents a risk factor for negative perioperative and long-term outcome in patients undergoing curative surgery ductal pancreatic adenocarcinoma surgery. PATIENTS AND METHODS:Two-hundred-twenty-one consecutive patients, twelve (6%) patients ≥80 years...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2016-04-01 00:00:00
abstract：:2-Amino-3-methylimidazo[4,5-f]quinoline (IQ) is a food mutagen which has been found to be carcinogenic in the Fischer-344 rat. We have assessed the effects of a diet containing menhaden oil on IQ-DNA adduct formation in several organs of the male Fischer-344 rat. Young adult, male Fischer-344 rats were maintained on e...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1993-09-01 00:00:00
