Abstract:
PURPOSE:Multidrug resistance (MDR) is known as a problem limiting the success of therapy in patients treated long term with chemotherapeutic drugs. The drug resistance is mainly due to the overexpression of the 170 kDa P-glycoprotein (Pgp), which causes a reduction in drug accumulation in the cancer cells. In this study, novel chemical modulator(s) from bitter melon (Momordica charantia L.) extracts obtained from leaves, fruits and tendrils were tested for their abilities to modulate the function of Pgp and the MDR phenotype in the multidrug-resistant human cervical carcinoma KB-V1 cells (high Pgp expression) in comparison with wildtype drug-sensitive KB-3-1 cells (lacking Pgp). METHODS:The KB-V1 and KB-3-1 cells were exposed to bitter melon extracts in the presence of various concentrations of vinblastine, and cytotoxicity was assessed by means of the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) colorimetric assay. Relative resistance was calculated as the ratio of the IC50 value of the KB-V1 cells to the IC50 value of the KB-3-1 cells. Accumulation and efflux of vinblastine in KB-V1 and KB-3-1 cells were measured using a [3H]-vinblastine incorporation assay. RESULTS:The leaf extracts increased the intracellular accumulation of [3H]-vinblastine in KB-V1 cells in a dose-dependent manner, but extracts from the fruits and tendrils had no effect. By modulating Pgp-mediated vinblastine efflux, the leaf extracts decreased the [3H]-vinblastine efflux in KB-V1 cells in a dose-dependent manner, but not in KB-3-1 cells. Treatment of drug-resistant KB-V1 cells with bitter melon leaf extracts increased their sensitivity to vinblastine, but similar treatment of KB-3-1 cells showed no modulating effect. The fruit and tendril extracts did not affect the MDR phenotype in either cell line. CONCLUSION:The leaf extracts from bitter melon were able to reverse the MDR phenotype, which is consistent with an increase in intracellular accumulation of the drug. The exact nature of the active components of bitter melon leaf extracts remains to be identified.
journal_name
Cancer Chemother Pharmacoljournal_title
Cancer chemotherapy and pharmacologyauthors
Limtrakul P,Khantamat O,Pintha Kdoi
10.1007/s00280-004-0848-4keywords:
subject
Has Abstractpub_date
2004-12-01 00:00:00pages
525-30issue
6eissn
0344-5704issn
1432-0843journal_volume
54pub_type
杂志文章abstract::Bizelesin (U-77779) is a highly potent bis-alkylating antitumor agent that is effective against several tumor systems in vitro and in vivo. V79 cells that were 125- to 250-fold resistant to bizelesin developed after constant exposure to gradually increasing concentrations of the drug. Resistant cells exhibited a multi...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/BF00686110
更新日期:1994-01-01 00:00:00
abstract:OBJECTIVE:To characterize the population pharmacokinetics of plitidepsin (Aplidin) in cancer patients. METHODS:A total of 283 patients (552 cycles) receiving intravenous plitidepsin as monotherapy at doses ranging from 0.13 to 8.0 mg/m(2) and given as 1- or 24-h infusions every week; 3- or 24-h infusion biweekly; or 1...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章,meta分析
doi:10.1007/s00280-008-0841-4
更新日期:2009-06-01 00:00:00
abstract::A B16 melanoma cell line in which resistance to doxorubicin (Dx) had been induced by in vitro exposure to the drug, was found not to be cross-resistant with 4'-deoxy-4'-iodo-doxorubicin (4'-I-Dx), a new Dx derivative. Dx was 200 times less active in resistant than in sensitive cells, whereas the iodo derivative compou...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/BF00262780
更新日期:1988-01-01 00:00:00
abstract::Glycoprotein (gp) 130, a receptor component for interleukin 6 (IL-6), can associate with a soluble IL-6 receptor (sIL-6R)-IL-6 complex. To examine the role of gp130 signaling in human hematopoietic progenitor-cell proliferation and differentiation, we studied the effects of the sIL-6R-IL-6 complex in combination with ...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s002800051041
更新日期:1996-01-01 00:00:00
abstract::A group of folate analogs of the 10-deaza-aminopterin series, which were designed on the basis of the results of an intensive biochemical and pharmacokinetic program, have been examined in therapy experiments utilizing a group of murine tumor models. These new analogs were found to be markedly superior to methotrexate...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:
更新日期:1984-01-01 00:00:00
abstract:BACKGROUND:Cetuximab and panitumumab are chimeric and fully human monoclonal antibodies, respectively, against epidermal growth factor receptor used in the treatment of metastatic colorectal cancer (mCRC). Incidence of documented infusion reaction (IR) is more common with cetuximab (all grades [g]: 15-21%, g 3/4: 2-5%)...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-009-1009-6
更新日期:2009-12-01 00:00:00
abstract:BACKGROUND:The correlation of the oncological outcomes of docetaxel and cabazitaxel in Japanese metastatic castration-resistant prostate cancer (mCRPC) patients has not been unclear. MATERIALS AND METHODS:This study included a total of 47 consecutive Japanese mCRPC patients treated with cabazitaxel and assessed the pr...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-018-3698-1
更新日期:2018-12-01 00:00:00
abstract::The purpose of this study was to assess the efficacy of verapamil (20 microM) and hyperthermia (42 degrees C) as modifiers of mitomycin C (MMC), used at different concentrations, in inhibiting the growth of human gastric adenocarcinoma (AGS) cells. Combined verapamil and hyperthermia treatment resulted in a significan...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/BF00685086
更新日期:1994-01-01 00:00:00
abstract:PURPOSE:S-1 has a favorable effect in unresectable pancreatic cancer and a potential radiosensitizer. In addition, daily oral administration of S-1 is more convenient than continuous infusion of 5-fluorouracil. This study was designed to evaluate the efficacy and safety of S-1 and concurrent radiotherapy in patients wi...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-008-0836-1
更新日期:2009-02-01 00:00:00
abstract::A total of 51 patients with large, primary, high-grade soft-tissue sarcomas of the extremities were treated at our institute with two preoperative and three postoperative cycles of doxorubicin plus ifosfamide/mesna. Preoperative doxorubicin was given intra-arterially for lesions of the lower extremities. Of 47 evaluab...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 临床试验,杂志文章,多中心研究
doi:
更新日期:1993-01-01 00:00:00
abstract:BACKGROUND:The cyclin-dependent kinase inhibitor flavopiridol increases irinotecan- and fluorouracil-induced apoptosis. We conducted a phase I trial of FOLFIRI + flavopiridol in patients with advanced solid tumors. DESIGN:FOLFIRI + flavopiridol were administered every 2 weeks. Based on sequence-dependent inhibition, f...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-010-1269-1
更新日期:2010-11-01 00:00:00
abstract:PURPOSE:5-Fluorouracil is the most commonly used drug for the treatment of colon cancer, yet clinical resistance to this drug is frequently observed in patients making this drug ineffective. Thus, identification of gene responsible for 5-FU resistance is of utmost importance. METHODS:Cellular cytotoxicity and expressi...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-015-2794-8
更新日期:2015-09-01 00:00:00
abstract::The technique of alkaline elution was employed to study the interactions of methylene dimethane sulphonate (MDMS) and formaldehyde (HCHO) with DNA from Yoshida lymphosarcoma cells treated with these agents. MDMS and HCHO produced a proteinase sensitive filter retention which indicated the presence of DNA-protein cross...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/BF00296247
更新日期:1987-01-01 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:D-Limonene is a natural monoterpene with pronounced chemotherapeutic activity and minimal toxicity in preclinical studies. A phase I clinical trial to assess toxicity, the maximum tolerated dose (MTD) and pharmacokinetics in patients with advanced cancer was followed by a limited phase II evaluation in breast c...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 临床试验,杂志文章
doi:10.1007/s002800050793
更新日期:1998-01-01 00:00:00
abstract:PURPOSE:Gemcitabine/cisplatin combination therapy has been the standard palliative chemotherapy for patients with advanced biliary tract cancer (BTC). We aimed to evaluate the efficacy and safety of adding S-1 to gemcitabine/cisplatin combination therapy for patients with advanced BTC. METHODS:Patients with histologic...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章,多中心研究
doi:10.1007/s00280-014-2648-9
更新日期:2015-02-01 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:To investigate whether coadministration of vindesine is a risk factor for acute kidney injury caused by high-dose methotrexate in patients with hematologic malignancies and identify its mechanism. METHODS:A retrospective analysis was conducted on 211 cycles of HD-MTX therapy in 178 patients with hematological ...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-019-03972-6
更新日期:2020-02-01 00:00:00
abstract:PURPOSE:As reported, epidermal growth factor receptor (EGFR) is over expressed in a variety of cancers including esophageal squamous cell carcinoma. Therefore, it becomes one of the potential targets for treating esophageal cancer. Pingyangmycin (PYM), a single A5 component of bleomycin, is currently used for the treat...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-012-1827-9
更新日期:2012-05-01 00:00:00
abstract::The activity of CD437¿6-[3-(1-adamantyl)-4 hydroxyphenyl]-2-naphthalene carboxylic acid¿, a relatively selective activator of RAR-gamma, was evaluated against four human ovarian-carcinoma cell lines : PE01, PE04 (a Pt-resistant in vivo-derived counterpart of PE01), PE01CDDP (a Pt-resistant in vitro-derived model of PE...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s002800050841
更新日期:1998-01-01 00:00:00
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journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-016-3232-2
更新日期:2017-03-01 00:00:00
abstract::A simple fluorescent microscopic method demonstrated that adriamycin was distributed in two cellular compartments of living rat colon cancer cells. Adriamycin accumulated slowly in cytoplasmic granules, probably lysosomes, where it persisted long after the drug was removed from the medium. On the other hand, adriamyci...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/BF00401439
更新日期:1984-01-01 00:00:00
abstract:PURPOSE:The potential use of combined therapy is under intensive study including the association between classical cytotoxic and genes encoding toxic proteins which enhanced the antitumour activity. The main aim of this work was to evaluate whether the gef gene, a suicide gene which has a demonstrated antiproliferative...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-009-1135-1
更新日期:2010-05-01 00:00:00
abstract:PURPOSE:To evaluate the antitumour activity of 5,6-dimethylxanthenone-4-acetic acid (DMXAA), a vascular disrupting agent currently under phase II clinical trials in combination with cancer chemotherapy, in rats bearing chemically induced primary mammary tumours. METHODS:Tumours were induced in female Wistar rats by in...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-006-0321-7
更新日期:2007-04-01 00:00:00
abstract::Seventy-three patients with Dukes' B2 and C colorectal cancer were randomized to adjuvant therapy after radical surgery. One group was treated with chemotherapy either alone or in combination with radiotherapy (RC). The second group was treated by chemotherapy (with or without radiotherapy) plus MER/BCG (RCM). In pati...
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/BF00292869
更新日期:1982-01-01 00:00:00
abstract::A human stomach-adenocarcinoma cell line (MKN-45) was selected for resistance to Adriamycin by stepwise exposure to increasing concentrations of this agent. The resulting cell line (MKN/ADR) exhibited a high level of cross-resistance to topoisomerase II (topo II)-targeted drugs such as Adriamycin, mitoxantrone, and et...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s002800050751
更新日期:1998-01-01 00:00:00
abstract::Physicochemical properties of two types of adriamycin preparation, suspensions and emulsions prepared for i.a. chemotherapy of hepatocellular carcinoma, were investigated. A suspension was prepared by dispersing adriamycin directly into the lipid contrast medium, Lipiodol, whereas an emulsion was obtained by emulsifyi...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/BF00451648
更新日期:1989-01-01 00:00:00
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journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-018-3607-7
更新日期:2018-07-01 00:00:00
abstract:PURPOSE:To further improve the prognosis of esophageal cancer patients, it is necessary to investigate new treatment strategies. The purposes of this study were to retrospectively assess the safety and efficacy of neoadjuvant chemoradiotherapy (CRT) with docetaxel/cisplatin/5-fluorouracil (DCF) (DCF-RT) in patients wit...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-018-03764-4
更新日期:2019-03-01 00:00:00
abstract::We have studied the effects of the chemotherapeutic drug cis-diamminedichloroplatinum(II) (cis-platin) on three human ovarian carcinoma cell lines - one sensitive to the drug (CH1), one with acquired resistance (CH1cisR) and one with intrinsic resistance (SKOV-3). Previous work has shown that the 50% inhibitory concen...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s002800050413
更新日期:1996-01-01 00:00:00