Abstract:
PURPOSE:To explore the protective effect of KLF4 against cytotoxicity induced by cisplatin and its possible mechanisms. METHODS:The expression levels of KLF4 were detected by RT-PCR and western blot in cancer stem-like cells derived from hepatocarcinoma (T3A-A3) and the hepatocarcinoma cell line HepG2. KLF4 was knocked down in T3A-A3 by infection of pLVTHM-shKLF4 lentivirus and ectopic expressed in HepG2 by infection of pWPTS-KLF4 lentivirus. The MTT assay was carried out to determine the impact of KLF4 on cell survival in response to cisplatin. Cisplatin-induced DNA damage was measured by TUNEL staining. Glutathione content was measured by enzymatic assay. Buthionine sulfoximine was used to deplete the content of glutathione. The expression of γ-glutamylcysteine synthetase was analyzed by RT-PCR in HepG2 cells ectopic expressed KLF4. RESULTS:With a higher level of KLF4, T3A-A3 cells were found to be more resistant to cisplatin than HepG2 cells. KLF4 knockdown was found to reduce cisplatin resistance in T3A-A3 cells. Ectopic expression of KLF4 in HepG2 cells was found to be associated with heightened resistance to DNA damage after exposure to cisplatin. Furthermore, the content of glutathione was found to be higher in T3A-A3 cells than in HepG2 cells. A nearly twofold increase in the cellular level of glutathione was identified in HepG2 cells with ectopic expression of KLF4. This was accompanied by heightened resistance to cisplatin. KLF4-mediated resistance to cisplatin in HepG2 cells was found to be completely abrogated by treatment with buthionine sulfoximine, an inhibitor of glutathione synthesis, which did not affect the expression of KLF4. Moreover, the mRNA expression of γ-glutamylcysteine synthetase, a rate-limiting enzyme of glutathione synthesis was up-regulated by KLF. CONCLUSION:We conclude that KLF4 regulates the cellular sensitivity to cisplatin in hepatocarcinoma stem-like cells and hepatocarcinoma cells by elevating intracellular glutathione levels.
journal_name
Cancer Chemother Pharmacoljournal_title
Cancer chemotherapy and pharmacologyauthors
Jia Y,Zhang W,Liu H,Peng L,Yang Z,Lou Jdoi
10.1007/s00280-011-1708-7subject
Has Abstractpub_date
2012-02-01 00:00:00pages
377-85issue
2eissn
0344-5704issn
1432-0843journal_volume
69pub_type
杂志文章abstract:PURPOSE:This phase II study was performed to evaluate the efficacy and safety of cisplatin/pemetrexed combined with 15 mg/kg of bevacizumab followed by pemetrexed/bevacizumab maintenance therapy as first-line chemotherapy in advanced non-squamous non-small cell lung cancer (NSCLC) limited to epidermal growth factor rec...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-018-3573-0
更新日期:2018-06-01 00:00:00
abstract:PURPOSE:This study was performed to determine whether or not in cervical, ovarian and lung cancer cell lines, free radicals (ROS) play a role in cisplatin cytotoxicity and activation of the mitochondrial and JNK/p38 pathways. The role of the enzyme, dihydrodiol dehydrogenase (DDH1), in the activation/deactivation of th...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-015-2739-2
更新日期:2015-06-01 00:00:00
abstract::Carboxypeptidase G2 (CPG2) is used when unexpected toxicity or renal failure occurs during high-dose methotrexate therapy. Leucovorin is also administered to antagonise the effects of methotrexate on purine anabolism. To investigate the effects of CPG2 on leucovorin rescue, we incubated the enzyme with both stereoisom...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-004-0910-2
更新日期:2005-04-01 00:00:00
abstract:PURPOSE:The primary objective of this investigation was to compare the extent of brain distribution of the lactone and the carboxylate forms of camptothecin (CPT) and topotecan (TPT) in awake freely moving rats. METHODS:The plasma concentration-time profiles of the lactone and the carboxylate forms of CPT and TPT were...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s002800050908
更新日期:1999-01-01 00:00:00
abstract::Etoposide has demonstrated highly significant clinical activity against a wide variety of neoplasms, including germ-cell malignancies, small-cell lung cancer, non-Hodgkin's lymphomas, leukemias, Kaposi's sarcoma, neuroblastoma, and soft-tissue sarcomas. It is also one of the important agents in the preparatory regimen...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章,评审
doi:10.1007/BF00684875
更新日期:1994-01-01 00:00:00
abstract:PURPOSE:The aim of the study was to assess the clinical activity and toxicity of oxaliplatin and leucovorin in combination with bolus and continuous infusional 5-fluorouracil administered every 2 weeks (modified FOLFOX-6 regimen) to patients with adenocarcinoma of an unknown primary site (ACUP). METHODS:Previously unt...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-015-2904-7
更新日期:2016-01-01 00:00:00
abstract:PURPOSE:Polyamines are absolutely essential for maintaining tumor cell proliferation. PG-11047, a polyamine analogue, is a nonfunctional competitor of the natural polyamine spermine that has demonstrated anticancer activity in cells and animal models of multiple cancer types. Preclinical investigations into the effects...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-020-04201-1
更新日期:2021-01-01 00:00:00
abstract:PURPOSE:The level of drug metabolism and drug transport is correlated with the sensitivity of cancer cells towards platinum-based chemotherapy. We hypothesize that genetic polymorphisms in metabolising enzymes gene GSTP1 (glutathione S-transferase P1), and MRP2 (multidrug resistance-associated protein 2) (ABCC2), which...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 临床试验,杂志文章
doi:10.1007/s00280-009-1046-1
更新日期:2010-02-01 00:00:00
abstract:PURPOSE:Acid ceramidase (AC) occupies an important place in the control of cancer cell proliferation. We tested the influence of AC inhibition on the effects of PSC 833, a P-glycoprotein antagonist with potent ceramide-generating capacity, to determine whether AC could be a therapeutic target in pancreatic cancer. MET...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-012-2050-4
更新日期:2013-03-01 00:00:00
abstract:PURPOSE:Studies were conducted on oryzalin (3,5-dinitro-N,N-di(n-propyl)sulfanilamide), a widely used dinitroaniline sulfonamide herbicide, which was identified from plant extracts as an inhibitor of mitogen- and growth factor-mediated intracellular free Ca2+ ([Ca2+]i) signalling in mammalian cells. METHODS AND RESULT...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s002800050703
更新日期:1997-01-01 00:00:00
abstract:PURPOSE:Fruquintinib (HMPL-013) is a novel, potent, and highly selective tyrosine kinase inhibitor targeting the vascular endothelial growth factor receptors (1, 2 and 3). This study was conducted to investigate the metabolism, excretion, and pharmacokinetics of HMPL-013 after a single oral dose to healthy Chinese men....
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-017-3394-6
更新日期:2017-09-01 00:00:00
abstract:PURPOSE:To compare the response, survival, hematological and non-hematological toxicities of gemcitabine administrated at fixed-dose rate infusion (10 mg/m(2)/min, FDR) and standard 30 min infusion in patients with advanced non-small-cell lung cancer (NSCLC). METHODS:Electronic databases of MEDLINE, EMBASE and Cochran...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章,meta分析
doi:10.1007/s00280-012-1974-z
更新日期:2012-12-01 00:00:00
abstract:PURPOSE:The aim of this study was to investigate the relationship between changes in IL-1β expression and intestinal apoptosis after chemotherapy. And we further determine whether interleukin-1 receptor antagonist (IL-1Ra) reduces apoptosis in vivo after 5-fluorouracil (5-FU) chemotherapy in the small intestine. METHO...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-010-1451-5
更新日期:2011-07-01 00:00:00
abstract::Valinomycin is a depsipeptide antibiotic that selectively translocates potassium ion across biologic membranes. This drug has been reported to display antitumor effects, but its use has been limited by its extreme toxicity. However, its incorporation into lipid vesicles (liposomes) has resulted in a reduction in toxic...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/BF00267946
更新日期:1989-01-01 00:00:00
abstract::Intravesical instillation of adriamycin (ADM) or mitomycin C (MMC) was carried out for the purpose of preventing the recurrence of superficial bladder cancers (Ta and T1) after transurethral resection or transurethral coagulation. First, eligible patients were divided into two groups (solitary and multiple) and then t...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1007/BF00262491
更新日期:1987-01-01 00:00:00
abstract:BACKGROUND:Cediranib (RECENTIN™) is an oral, highly potent VEGF inhibitor. This study evaluated the effect of food on the pharmacokinetics of cediranib and compared the administration of continual cediranib via two dosing strategies using this as a platform to investigate pharmacodynamic imaging biomarkers. METHODS:Si...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1007/s00280-010-1534-3
更新日期:2011-09-01 00:00:00
abstract::A total of 26 evaluable patients with previously untreated, non-resectable adenocarcinoma of the lung were given 80 mg/m2 i.v. teniposide daily for 5 days every 3 weeks. Three partial responses (11%) were obtained that lasted for 12, 11 and 32 weeks, respectively. Leucopenia was the dose-limiting side effect, with WBC...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/BF00685166
更新日期:1991-01-01 00:00:00
abstract:PURPOSE:There is a need for effective chemotherapy protocols for gall bladder cancer (GBC). Gemcitabine has antitumor activity in pancreatic cancer. Oxaliplatin is effective in GI cancers. Based on evidence of synergy between these two, we designed this study to evaluate efficacy of this combination in unresectable GBC...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-009-1055-0
更新日期:2010-02-01 00:00:00
abstract:PURPOSE:Inhibition of the mammalian target of rapamycin (mTOR), a regulator of hypoxia inducible factor (HIF), is an established therapy for advanced renal cell cancer (RCC). Inhibition of mTOR results in compensatory AKT activation, a likely resistance mechanism. We evaluated whether addition of the Akt inhibitor peri...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-011-1684-y
更新日期:2012-01-01 00:00:00
abstract:PURPOSE:The aim of this study was to investigate typical population pharmacokinetic (PK) parameters, potential covariates, and interindividual and residual variabilities of PI-88, a heparanase endoglycosidase enzyme inhibitor being developed for the treatment of cancer. METHODS:A population PK model of PI-88 was devel...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-009-1080-z
更新日期:2010-03-01 00:00:00
abstract::Unfortunately, the online published article has error in Figure 4. The correct Figure 4 is given here. ...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章,已发布勘误
doi:10.1007/s00280-018-3590-z
更新日期:2018-06-01 00:00:00
abstract::The 9L gliosarcoma growing subcutaneously in the hind leg of the Fisher 344 rat contains major areas of severe (< 5 mmHg) hypoxia, making up about 49% of the tumor. Intravenous administration of an ultrapurified polymerized bovine hemoglobin solution (8 ml/kg) along with normal air breathing reduces the percentage of ...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/BF00686024
更新日期:1993-01-01 00:00:00
abstract::Forty-one previously treated patients with advanced Hodgkin's disease were treated with a combination chemotherapy regimen -- ABVD (adriamycin, bleomycin, velbe/vincristine, imidazole carboxamide). Complete remission was achieved in three patients (7%), partial remission in 23 (56%), and no response in 15 patients (37...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/BF00258297
更新日期:1979-01-01 00:00:00
abstract::The intestinal absorption of 6-mercaptopurine and its nucleoside 6-mercaptopurine riboside has been studied in the rat with the in situ dual luminal and vascular perfusion. 6-Mercaptopurine is an inactive prodrug that requires intestinal absorption, cellular uptake and intracellular anabolism for cytotoxic activity. V...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/BF00689198
更新日期:1995-01-01 00:00:00
abstract:PURPOSE:To characterize cobimetinib pharmacokinetics and evaluate impact of clinically relevant covariates on cobimetinib pharmacokinetics. METHODS:Plasma samples (N = 4886) were collected from 487 patients with various solid tumors (mainly melanoma) in three clinical studies (MEK4592g, NO25395, GO28141). Cobimetinib ...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-015-2862-0
更新日期:2015-11-01 00:00:00
abstract::Lanreotide (BIM 32014), a somatulin analogue, was found to be as effective as castration in a rat prostate tumor model. Therapeutic benefit was also demonstrated in the hormone-resistant phase of this tumor model. The activity of lanreotide may be due to a reduction in the levels of growth factors such as insulin grow...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 临床试验,杂志文章
doi:10.1007/BF00685857
更新日期:1995-01-01 00:00:00
abstract:PURPOSE:Thalidomide has recently shown significant promise in the treatment of some types of cancer, and trials in combination with conventional chemotherapy are being undertaken. We wished to determine whether thalidomide potentiated the effect of cyclophosphamide, a commonly used cytotoxic drug, in a murine tumour mo...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-002-0482-y
更新日期:2002-09-01 00:00:00
abstract:PURPOSE:To evaluate the effect of front-line chemotherapy on CK-19mRNA+ circulating tumor cells (CTCs) and their relevance in patients with metastatic breast cancer (MBC). PATIENTS AND METHODS:The presence of CK-19mRNA+ CTCs was assessed using a real-time RT-PCR assay in 298 previously untreated patients with MBC befo...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 临床试验,杂志文章
doi:10.1007/s00280-014-2598-2
更新日期:2014-12-01 00:00:00
abstract::A four-fold (P less than 0.001) mean increase in iron levels was found in 18 patients (a total of 36 courses of therapy) with ovarian cancer at the end of a 5-day course of cisplatin (40 mg/m2 per day every 4-5 weeks). The kinetics of these modifications began very early (24-48 h after initiation of therapy): they rea...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/BF00252983
更新日期:1987-01-01 00:00:00
abstract:PURPOSE:While the target of many anticancer agents has been identified, the processes leading to killing of the cancer cells and the molecular basis of resistance to the drugs are not well understood. We used human gastrointestinal cancer cell lines and examined how anticancer agents induced cell killing and how the ch...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s002800050861
更新日期:1999-01-01 00:00:00