Abstract:
PURPOSE:Hypoxic tumor cells overexpressing hypoxia-inducible factor 1alpha (HIF-1alpha) are generally resistant to chemo/radiotherapy. We have reported that Se-methylselenocysteine (MSC) therapeutically enhances the efficacy and selectivity of irinotecan against human tumor xenografts. The aim of this study was to delineate the mechanism responsible for the observed efficacy targeting on HIF-1alpha and its transcriptionally regulated genes VEGF and CAIX. METHODS:We investigated the mechanism of HIF-1alpha inhibition by MSC and its critical role in the therapeutic outcome by generating HIF-1alpha stable knockdown (KD) human head and neck squamous cell carcinoma, FaDu by transfecting HIF-1alpha short hairpin RNA. RESULTS:While cytotoxic efficacy in combination with methylselenic acid (MSA) with SN-38 (active metabolites of MSC and irinotecan) could not be confirmed in vitro against normoxic tumor cells, the hypoxic tumor cells were more sensitive to the combination. Reduction in HIF-1alpha either by MSA or shRNA knockdown resulted in significant increase in cytotoxicity of SN38 in vitro against hypoxic, but not the normoxic tumor cells. Similarly, in vivo, either MSC in combination with irinotecan treatment of parental xenografts or HIF-1alpha KD tumors treated with irinotecan alone resulted in comparable therapeutic response and increase in the long-term survival of mice bearing FaDu xenografts. CONCLUSIONS:Our results show that HIF-1alpha is a critical target for MSC and its inhibition was associated with enhanced antitumor activity of irinotecan. Inhibition of HIF-1alpha appeared to be mediated through stabilization of PHD2, 3 and downregulation of ROS by MSC. Thus, our findings support the development of MSC as a HIF-1alpha inhibitor in combination chemotherapy.
journal_name
Cancer Chemother Pharmacoljournal_title
Cancer chemotherapy and pharmacologyauthors
Chintala S,Tóth K,Cao S,Durrani FA,Vaughan MM,Jensen RL,Rustum YMdoi
10.1007/s00280-009-1238-8subject
Has Abstractpub_date
2010-10-01 00:00:00pages
899-911issue
5eissn
0344-5704issn
1432-0843journal_volume
66pub_type
杂志文章abstract:PURPOSE:To investigate the synergistic cytotoxicity of TRAIL in combination with chemotherapeutic agents in A549 cell lines, we systematically evaluated the cytotoxicity of TRAIL alone and TRAIL in combination with cisplatin, paclitaxel (Taxol) or actinomycin D in A549 cell lines in vitro and in vivo, and whether the s...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-004-0867-1
更新日期:2005-02-01 00:00:00
abstract:OBJECTIVE:SDX-101 is the non-cyclooxygenase 2-inhibiting R-enantiomer of the non-steroid anti-inflammatory drug etodolac, and has anti-tumour activity in chronic lymphocytic leukaemia (CLL). SDX-308 and SDX-309 are more potent, structurally related indole-pyran analogues of SDX-101. The current study was performed to i...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-006-0400-9
更新日期:2007-09-01 00:00:00
abstract:PURPOSE:S-1 has systemic activity for locally advanced pancreatic cancer (LAPC). Here, the efficacy and safety of induction gemcitabine (GEM) and S-1 (GS) followed by chemoradiotherapy (CRT) and systemic chemotherapy using S-1 for LAPC were assessed. METHODS:The treatment consisted of four cycles of induction GS (S-1 ...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-017-3350-5
更新日期:2017-07-01 00:00:00
abstract::Comparative in vitro drug testing was performed in 72 of 183 surgically removed human colorectal cancer specimens (34 primary lesions, 38 metastases). In 10 of these tumors, comparative dose-response curves were obtained. Given a greater than or equal to 70% ICF (inhibition of colony formation) as threshold for in vit...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/BF00273390
更新日期:1986-01-01 00:00:00
abstract::GR63178A is the second pentacyclic pyrroloquinone to enter clinical trials as an anticancer drug. We developed a reversed-phase, gradient-elution high-performance liquid chromatography (HPLC) method along with a Bond Elut C2 mini-column sample-preparation technique for the analysis of GR63178A, its 9-hydroxy-metabolit...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/BF00684952
更新日期:1991-01-01 00:00:00
abstract::We studied bioavailability, treatment schedule dependence, and therapeutic efficacy of orally administered MST-16, a novel derivative of bis(2,6-dioxopiperazine), against murine tumors and human tumor xenografts. The rate of its intestinal absorption was about 50%, and it was immediately metabolized to its parent comp...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/BF00685528
更新日期:1991-01-01 00:00:00
abstract:PURPOSE:The dolastatins are a class of naturally occurring cytotoxic peptides which function by inhibiting microtubule assembly and tubulin polymerization. Cemadotin is a synthetic analogue of dolastatin 15 with potent antiproliferative and preclinical antitumor activity. This report describes a phase I study to evalua...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 临床试验,杂志文章
doi:10.1007/s002800000152
更新日期:2000-01-01 00:00:00
abstract::Increasing the expression of human multidrug resistance (MDR) 1 gene in bone marrow cells to prevent or circumvent bone morrow toxicity from chemotherapy agent is a high priority of dose intensification protocols. In this study, we have used a tumor-bearing model to investigate the chemoprotection effect of MDR1 gene ...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-005-0144-y
更新日期:2006-07-01 00:00:00
abstract:PURPOSE:Our study was designed to evaluate the efficacy and safety of everolimus in patients with pre-treated metastatic gastric and esophagus cancers in a US-based population focusing on biomarker correlation. METHODS:Patients with advanced upper GI adenocarcinomas who progressed after 1-2 prior regimens received eve...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章,多中心研究
doi:10.1007/s00280-015-2744-5
更新日期:2015-07-01 00:00:00
abstract:PURPOSE:Malignant gliomas display aggressive local behavior and are not cured by existing therapy. Etoposide, a topoisomerase-II-inhibitor agent, is one of the most active and useful antineoplastic agents. However, etoposide is not usually used on these tumors. We undertook an in vitro study to prove that etoposide is ...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s002800050713
更新日期:1998-01-01 00:00:00
abstract:BACKGROUND:Camptothecin (CPT) is an anticancer agent that kills cells by converting DNA topoisomerase I into a DNA-damaging agent. Although CPT and its derivatives are now being used to treat tumors in a variety of clinical protocols, the low water solubility of the drug and its unique pharmacodynamics and reactivity i...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-002-0463-1
更新日期:2002-08-01 00:00:00
abstract:PURPOSE:To investigate the activity of combination chemotherapy with ifosfamide, 5-fluorouracil, etoposide and cisplatin in patients with metastatic urothelial cancer. METHODS:A group of 29 patients were treated with 2000 mg/m2 ifosfamide, 750 mg/m2 5-fluorouracil, 100 mg/m2 etoposide and 20 mg/m2 cisplatin. All four ...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s002800100320
更新日期:2001-07-01 00:00:00
abstract::Colchicine is secreted into bile as a major pathway of elimination. Cyclosporine (CsA) inhibits colchicine biliary secretion. In the present study, the effects of cyclosporine and its vehicle (cremophor) on the partitioning of colchicine across the liver were studied. CsA decreased the colchicine bile/plasma ratio fro...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/BF00685886
更新日期:1993-01-01 00:00:00
abstract::To determine whether the morphometric indices of hepatocellular carcinoma (HCC) correlated with the prognoses, the microscopic morphometric values for 84 HCC cases treated by hepatic resection were studied using an image analyzer in relation to the survival rate and the gross classification. The mean survival time (MS...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/BF00686663
更新日期:1994-01-01 00:00:00
abstract:OBJECTIVES:Concurrent chemoradiotherapy (CRT) is the current standard of treatment for anal squamous carcinoma. However, local or metastatic recurrences remain significant after CRT with 5-fluorouracil (5-FU) and mitomycin C (MMC). Therefore, the present study evaluated the feasibility and efficacy of adding cisplatin ...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-016-3185-5
更新日期:2016-12-01 00:00:00
abstract::Infusion of 5'-dFUrd (2.0-3.0 g/m2 over 1 h on days 1-5 every 3rd week) resulted in one partial response in 21 patients with advanced and progressing colorectal cancer. No patient had received chemotherapy before the 5'-dFUrd trial. Hematological and gastrointestinal toxicity were generally mild. In 4 patients periphe...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/BF00257528
更新日期:1985-01-01 00:00:00
abstract:PURPOSE:Thyroid cancers with unsatisfactory curative effect nowadays are the most common malignant tumors of the endocrine system. Apoptosis evasion, a hallmark of cancer, has driven the search of stimulating novel cell death way in cancer therapy. This review aims to explore the relationship between autophagy and thyr...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章,评审
doi:10.1007/s00280-013-2363-y
更新日期:2014-03-01 00:00:00
abstract:PURPOSE:By a scaffold shortening strategy, a small series of retinoidal amides fenretinide (4-HPR) analogs have been synthesized from α, β-ionones and tested for their antiproliferative and differentiating activities, and antioxidant effect. METHODS:The antiproliferative activity and triggering of apoptosis of our sho...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-017-3265-1
更新日期:2017-04-01 00:00:00
abstract::In this review of the management of invasive carcinoma of the bladder the results of primary and systemic therapies are evaluated in the light of the natural history of the disease. The clinical and pathological causes of treatment failure are assessed in an attempt to identify new approaches that may be used in the f...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章,评审
doi:10.1007/BF00254978
更新日期:1979-01-01 00:00:00
abstract::Hypocrellin compounds were selected as potential photosensitizers for photodynamic therapy (PDT) owing to their high quantum yields of singlet oxygen (1O2), and facility for site-directed chemical modification to enhance phototoxicity, pharmacokinetics, solubility, and light absorption in the red spectral region, amon...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s002800050395
更新日期:1996-01-01 00:00:00
abstract:BACKGROUND:The pharmacokinetics and tissue distribution of photofrin II (PF) and its efficacy in sonodynamic therapy were studied in rats bearing AH130 solid tumors. MATERIALS AND METHODS:In order to find the optimum timing of the ultrasound exposure after administration of PF, the PF concentrations in plasma, skin, m...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-002-0523-6
更新日期:2003-02-01 00:00:00
abstract:PURPOSE:Dinaciclib inhibits cyclin-dependent kinases 1, 2, 5, and 9 with a better therapeutic index than flavopiridol in preclinical studies. This study assessed the activity of dinaciclib in acute leukemia both in the clinic and in vitro. METHODS:Adults with relapsed/refractory acute myeloid leukemia (n = 14) and acu...
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/s00280-013-2249-z
更新日期:2013-10-01 00:00:00
abstract:BACKGROUND:Head and neck squamous carcinoma (HNSCC) is a chemotherapy-sensitive tumour, but this sensitivity is not reflected in an impact on survival. The study of new drugs is therefore indicated. Pirarubicin (4'-O-tetrahydropyranyl-doxorubicin) has a higher preclinical index than doxorubicin, with low cardiotoxicity...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 临床试验,杂志文章
doi:10.1007/BF00686275
更新日期:1994-01-01 00:00:00
abstract::Trastuzumab has deeply and radically changed the course of HER2-positive breast cancer disease. The recent development of a subcutaneous (SC) formulation of trastuzumab is an important step towards improved patients' care. SC trastuzumab at a fixed dose of 600 mg administered every 3 weeks for about 5 min provides a v...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-013-2289-4
更新日期:2013-12-01 00:00:00
abstract:PURPOSE:We examined the interaction between cyclophosphamide (CPA) and angiostatin (AS) on the growth of primary Lewis lung carcinoma (LLC) tumors and on the development of LLC pulmonary metastases. We studied the effects of AS and CPA on the stages of angiogenesis employing in vitro assays. METHODS:Primary tumor grow...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-002-0514-7
更新日期:2002-11-01 00:00:00
abstract:PURPOSE:A refined pharmacodynamic model for toxicity is necessary for successful adaptive control of the administration of an anticancer drug to avoid toxicity. We sought to establish a pharmacodynamic model of leukopenia in a 14-day administration of etoposide. METHODS:Pharmacokinetic data of 32 patients treated with...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 临床试验,杂志文章
doi:10.1007/s002800050538
更新日期:1996-01-01 00:00:00
abstract::A dose-ranging study with oral levonantradol was performed in 20 cancer patients. The optimum oral dose which attenuated vomiting accompanying chemotherapy was 1 mg 4-hourly. Side-effects comprised dizziness, confusion, euphoria, drowsiness, and difficulty in concentrating. There was no cardiovascular toxicity. Overal...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/BF00257422
更新日期:1983-01-01 00:00:00
abstract::In order to determine if any inherent sensitivity differences may exist between VP16-213 and VM26 individual human tumors were grown in vitro and drug sensitivities were determined using the soft agar clonogenic assay method. Only nine of the 34 tumors tested so far showed a differing sensitivity to VP16-213 and VM26 ...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/BF00254531
更新日期:1982-01-01 00:00:00
abstract:BACKGROUND:TAP chemotherapy (paclitaxel, doxorubicin, and cisplatin) is effective for advanced and recurrent endometrial carcinoma, but has occasional severe toxicity. TEC chemotherapy (paclitaxel, epirubicin, and carboplatin) has been suggested to have less toxicity; however, the optimal dosage has yet to be determine...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-011-1638-4
更新日期:2011-12-01 00:00:00
abstract::Anaesthetized rabbits were infused with methotrexate (MTX; 30 micrograms x kg-1 x min-1) for 4 h. Constant plasma concentrations of MTX and its main metabolite 7-hydroxymethotrexate (7-OH-MTX) were achieved 40-60 min after the start of the infusion. In all, 50% of the infused MTX was eliminated by the kidney; another ...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/BF02897260
更新日期:1990-01-01 00:00:00