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-gp genes. Doxorubicin (Dox) is an anthracycline that belongs to this group of compounds. To explore the possible resistance mechanism(s) to anthracyclines that do not involve P-gp, we use a Dox analog, hydroxyrubicin (HyR) or WP159, which contains a C3' hydroxy group in replacement of the amino group in the sugar moiety of Dox thereby reducing basicity and eliminating positive charge in the parental compound to establish HyR-resistant cell lines. These resistant cells displayed the MDR phenotype and overexpressed P-gp as analyzed by Western blot analyses and immunohistochemical staining using two different anti-P-gp antibodies. Strikingly, the levels of P-gp mRNA in the majority of these MDR cells remained comparable to those in the drug-sensitive counterparts by slot blot hybridization. These results implicate that the basic center of the selecting agent is a critical determinant for generating diverse MDR variants, and that HyR may have a posttranscriptional effect on P-gp biosynthesis. This is the first report suggesting that cultured cells exposed to a particular selecting agent may give rise to particular subtype of MDR variants.
journal_name
Anticancer Resjournal_title
Anticancer researchauthors
Zhao JY,Savaraj N,Song R,Priebe W,Kuo MTsubject
Has Abstractpub_date
1994-09-01 00:00:00pages
1735-42issue
5Aeissn
0250-7005issn
1791-7530journal_volume
14pub_type
杂志文章abstract：OBJECTIVES:To investigate the roles of insulin-like growth factor II (IGF2), myeloperoxidase (MPO), E-cadherin (CDH1), urokinase and xeroderma pigmentosum group A and D (XPA, XPD) polymorphisms upon leiomyoma susceptibility. STUDY DESIGN:Women were divided into: group 1, leiomyoma (n=158); group 2, non-leiomyoma (n=15...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2010-06-01 00:00:00
abstract：BACKGROUND/AIM:A prospective study was designed to investigate the effects of anesthesia, particularly that of the one-lung ventilation procedure (OLV), on the expression of hypoxia-inducible factor 1alpha (HIF1alpha) in patients with lung carcinomas and pneumothorax. MATERIALS AND METHODS:The immunohistochemical expr...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2010-04-01 00:00:00
abstract：BACKGROUND/AIM:Multidrug resistance (MDR) is often associated with overexpression of P-glycoprotein (ABCB1) in cancer cells. Apatinib is a novel Vascular endothelial growth factor receptor-TKI (VEGFR-TKI) which inhibits the function of ABCB1 in certain cancers. This study aimed to investigate the effect of apatinib on ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.13739
更新日期：2019-10-01 00:00:00
abstract：BACKGROUND:Recently, metastasis associated with the colon cancer 1 (MACC1) gene was identified by genome-wide search for differentially expressed genes in human colon cancer tissues and metastases. Previously, the MACC1 expression levels were examined in colorectal carcinomas and it was found that MACC1 expression show...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2010-09-01 00:00:00
abstract：BACKGROUND:Paclitaxel pharmacokinetics were shown to be related to toxicity and survival. PATIENTS AND METHODS:We evaluated the effects of time above paclitaxel concentrations of 0.05 micromol/l (T(>0.05) and systemic exposures (AUC) to total and unbound paclitaxel (tPAC, uPAC) on response in patients with advanced ca...
journal_title：Anticancer research
pub_type： 杂志文章,随机对照试验
doi：
更新日期：2005-11-01 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/AIM:Interleukin-32 (IL32) has been newly-identified as a proinflammatory cytokine. In the present study, we aimed to clarify the clinical role of IL32-positive cells in esophageal squamous cell cancer (ESCC) and regulatory T-cell (Treg) infiltration in the stroma. A total of 179 patients with ESCC who underw...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2015-05-01 00:00:00
abstract：:Normal resident peritoneal macrophages from BALB/c mice were continuously grown and expanded in vitro as non tumorigenic cells on a confluent layer of mesothelial cells. These peritoneal macrophages expanded in vitro (EPM) were very cytotoxic against EMT6 sarcoma, Abelson myeloma, EL4, and L929S cells in culture. This...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1988-01-01 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：:Combination therapies are used in the clinic to achieve cure, better efficacy and to circumvent resistant disease in patients. Initial assessment of the effect of such combinations, usually of two agents, is frequently performed using in vitro assays. In this review, we give a short summary of the types of analyses th...
journal_title：Anticancer research
pub_type： 杂志文章,评审
doi：10.21873/anticanres.13472
更新日期：2019-07-01 00:00:00
abstract：:A circadian rhythm of serum concentrations of two tumor markers (CEA and AFP) was demonstrated in individuals not suffering from cancer. These rhythms exhibited a diurnal peak with a nocturnal dip. They disappeared in cancer groups. However, in some cancer subjects, a circadian activity was still detectable, but with ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1986-09-01 00:00:00
abstract：BACKGROUND:Malignant gliomas still present a medical challenge, despite decades of continuous extensive research with optimization of surgical techniques, radiotherapy and systemic treatments. PATIENTS AND METHODS:From 1999 to 2004, 104 patients with WHO grade III and IVgliomas underwent surgery and received concomita...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2006-11-01 00:00:00
abstract：BACKGROUND:MicroRNAs (miRNAs) have been linked to a number of cancer types including breast cancer. The rate of brain metastases is 10-30% in patients with advanced breast cancer which is associated with poor prognosis. The potential application of miRNAs in the diagnostics and therapeutics of breast cancer with brain ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.11841
更新日期：2017-08-01 00:00:00
abstract：:The plasminogen activator (PA) activity and oestrogen and progestin receptor concentrations were determined in normal, benign and malignant tissues of human breast and ovary. The geometric mean of PA activity was significantly higher (p less than 0.05) in malignant than in normal breast tissue specimens. PA activity w...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1983-09-01 00:00:00
abstract：AIM:This study assessed the symptoms and health-related quality of life (HRQOL) of patients with advanced non-small cell lung cancer (NSCLC) and examined the symptom-associated characteristics. PATIENTS AND METHODS:The symptoms of 122 patients with NSCLC scheduled for chemotherapy before starting treatment were survey...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2016-08-01 00:00:00
abstract：BACKGROUND:Clofarabine is a second-generation nucleoside analogue. The aim of the study was the analysis of ex vivo activity of clofarabine and 14 other anticancer drugs in pediatric and adult acute lymphoblastic (ALL) and myeloid (AML) leukemia. PATIENTS AND METHODS:The ex vivo drug resistance profile was analyzed in...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2009-05-01 00:00:00
abstract：BACKGROUND/AIM:We have shown that either chronic nicotine (NIC) exposure or 5-aza-cytidine (AZA) augments oxidative stress-dependent injury through stimulating p66shc in renal cells. Hence, NIC could exacerbate adverse effects of AZA while antioxidants such as resveratrol (RES) could prevent it. MATERIALS AND METHODS:...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.11793
更新日期：2017-08-01 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:In pancreatic cancer, where the microenvironment is extremely hypoxic, analyzing signal transduction under hypoxia is thought to be significantly important. By investigating microarray analysis of pancreatic cancer cells cultured under both normoxia and hypoxia, we found that the expression of leukocyte ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.12122
更新日期：2017-12-01 00:00:00
abstract：BACKGROUND/AIM:The Cancer Stem Cell (CSC) model proposes that cancer is driven by a cellular component which possesses stem cell (SC) properties, cancer stem cells (CSCs), a distinct cell-type which is tumorigenic and capable of invasion and metastasis. Enzymatic activity of aldehyde dehydrogenase-1 (ALDH1), a de-toxif...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2014-03-01 00:00:00
abstract：BACKGROUND/AIM:To identify the clinical and dosimetric predictors of severe acute radiation esophagitis (RE) in patients with non-small cell lung cancer (NSCLC) treated with accelerated hyperfractionated concurrent chemoradiotherapy (AH-CCRT) with concomitant boost technique. PATIENTS AND METHODS:A total of 159 patien...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.13139
更新日期：2019-01-01 00:00:00
abstract：BACKGROUND:The doxorubicin-docetaxel combination is active in breast cancer; the aim of the present study was to evaluate the complete response rate and safety profile of the doxorubicin and docetaxel regimen as first-line chemotherapy in metastatic breast cancer patients. PATIENTS AND METHODS:Forty-three patients ent...
journal_title：Anticancer research
pub_type： 临床试验,杂志文章,多中心研究
doi：
更新日期：2004-09-01 00:00:00
abstract：BACKGROUND/AIM:We evaluated patients undergoing salvage hysterectomy after brachytherapy (BT) following concomitant chemoradiation (CRT) for locally advanced cervical cancers (LACC), when residual disease was suspected. PATIENTS AND METHODS:From 2004 to 2013, 29 patients had a radical hysterectomy at the Gustave Rouss...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.13421
更新日期：2019-06-01 00:00:00
abstract：BACKGROUND:Cancer of the small intestine is a rare disease, and its clinical features have not been clearly elucidated. Techniques such as double balloon endoscopy and capsule endoscopy allow the preoperative diagnosis of cancer of the small intestine, but this cancer is often detected at an advanced state and in many ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2010-08-01 00:00:00
abstract：:BK virus was isolated by Gardner et al in 1971 from the urine of an immunosuppressed patient with a kidney allograft. Antibodies to this virus are ubiquitous in the general populations worldwide, but the oncogenic capacity of BKV in humans had not been reported. The virus transformed in vitro permissive human and non-...
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:Second mitochondria-derived activator of caspase (Smac) is a proapoptogenic mitochondrial protein that antagonizes inhibitors of apoptosis proteins (IAPs), resulting in induction of apoptosis. In the present study we investigated the effects of a Smac mimetic in combination with doxorubicin against osteo...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.12058
更新日期：2017-11-01 00:00:00
abstract：:Recurrent breast cancer (BC) tends to show an aggressive behavior and the number of cases of long-term survival is limited. Two rare cases of recurrent breast cancer were treated with a multidisciplinary approach. The outcome of the two cases indicated an excellent survival period of more than 13 years after recurrenc...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2011-01-01 00:00:00
abstract：BACKGROUND:Active hexose-correlated compound (AHCC) is an extract of a basidiomycete mushroom that enhances the therapeutic effects and reduces the side-effects of chemotherapy. Our previous studies demonstrated that heat-shock protein 27 (HSP27) was involved in gemcitabine-resistance of pancreatic cancer cells and it ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2015-11-01 00:00:00
abstract：BACKGROUND:Various localized side effects which accompany head and neck irradiation [IR] have been widely reported. However, systemic side effects/have been only sparsely reported in the short-term period post-IR in an animal model. The potential modulatory role of zinc-desferrioxamine [Zn-DFO] on IR effects was examin...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2000-05-01 00:00:00
abstract：:Inv(3)(q21q26)/t(3;3)(q21;q26) is a feature of a distinctive entity of acute myeloid leukemia (AML) associated with normal or elevated platelet count, atypical megakaryocytes and multilineage dysplasia in the bone marrow, as well as minimal to no response to chemotherapy and poor clinical outcome. The presence of an i...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2013-02-01 00:00:00
