Abstract:
:Acquired resistance to tamoxifen (Tam) is a critical problem in breast cancer therapy. Therefore, new potential strategies for Tam-resistant breast cancer are needed recently. In this study, we synthesized a novel histone deacetylase (HDAC) inhibitor, MHY218, for the development of potent inhibitors of HDAC and evaluated its biological activities by monitoring the anticancer effects in Tam-resistant MCF-7 (TAMR/MCF-7) cells via in vitro and in vivo studies. MHY218 significantly inhibited the proliferation of TAMR/MCF-7 cells in a dose-dependent manner. The total HDAC enzyme activity was significantly inhibited, corresponding with inhibition of acetylated H3 and H4 expression in TAMR/MCF-7 cells. HDAC1, 4, and 6 expression levels were decreased in response to MHY218 treatment. Cell cycle analysis indicated that MHY218 induced G2/M phase cell cycle arrest. As expected, apoptotic cell death was observed in response to MHY218 treatment. Interestingly, levels of beclin-1 and LC3-II, the markers of autophagy, were increased in TAMR/MCF-7 cells treated with MHY218. The efficacy of MHY218 was also compared with that of SAHA in vivo in a xenograft model of nude mice bearing a TAMR/MCF-7 cells. MHY218 (10 mg/kg, twice a week for 21 days) completely inhibited tumor growth and MHY218 markedly inhibited the expression of proliferative cell nuclear antigen (PCNA) in tumor tissue. These results indicate that MHY218 can induce caspase-independent autophagic cell death rather than apoptotic cell death. The MHY218-induced autophagic cell death could be a new strategy in the treatment of Tam-resistant human breast cancer.
journal_name
Invest New Drugsjournal_title
Investigational new drugsauthors
Park JH,Ahn MY,Kim TH,Yoon S,Kang KW,Lee J,Moon HR,Jung JH,Chung HY,Kim HSdoi
10.1007/s10637-011-9752-zsubject
Has Abstractpub_date
2012-10-01 00:00:00pages
1887-98issue
5eissn
0167-6997issn
1573-0646journal_volume
30pub_type
杂志文章abstract:BACKGROUND:The primary objective of this Phase I study was to determine the maximum tolerated dose (MTD) and recommended phase II dose for Tomudex and Doxorubicin when given in combination to patients with advanced metastatic cancer. The secondary objective was to assess the toxicity profile. PATIENTS AND METHODS:Star...
journal_title:Investigational new drugs
pub_type: 临床试验,杂志文章
doi:10.1023/B:DRUG.0000047105.38511.2a
更新日期:2005-01-01 00:00:00
abstract::L1210 leukemia cells, because of their rapid growth rate in suspension culture and high growth fraction, are ideally suited to screen in vitro for cytotoxic compounds. Although L1210 cells may mimic rapidly growing tumors, they have not been effective in selecting agents active against slow growing solid tumors. We ex...
journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1007/BF00175291
更新日期:1987-01-01 00:00:00
abstract::This report shows that N-acylation of the protein kinase C (PKC) substrate Arg-Lys-Arg-Thr-Leu-Arg-Arg-Leu (RKRTLRRL) provides it with a potent inhibitory activity against PKC. N-myristoyl-RKRTLRRL inhibited Ca2(+)- and phosphatidylserine (PS)-dependent histone phosphorylation catalyzed by PKC with a 50% inhibitory co...
journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1007/BF00175084
更新日期:1991-05-01 00:00:00
abstract::We performed a single-institution phase II study to evaluate the efficacy and toxicities of vinorelbine monotherapy in patients previously treated with anthracyclines and taxanes. Vinorelbine was administered at a dose level of 25 mg/m² intravenously on days 1, 8, 15 and 22, every four weeks, and responses were assess...
journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1007/s10637-009-9357-y
更新日期:2011-04-01 00:00:00
abstract:BACKGROUND:Although bevacizumab plus FOLFOX is a standard treatment for metastatic colorectal cancer, oxaliplatin must be withdrawn in many patients because of cumulative neurotoxicity. We postulated that a reduced dose of oxaliplatin and modified treatment schedule would prolong the time to treatment failure and evalu...
journal_title:Investigational new drugs
pub_type: 杂志文章,多中心研究
doi:10.1007/s10637-015-0239-1
更新日期:2015-08-01 00:00:00
abstract::The neurotransmitter serotonin is involved in numerous bodily functions via seven different serotonin receptor subfamilies. Serotonin plays a role in gastrointestinal functions like intestinal secretion or peristalsis and neuropsychiatric events like depression or migraine. One of these subtypes has been found on glio...
journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1007/s10637-011-9781-7
更新日期:2012-12-01 00:00:00
abstract::Purpose Among alkaloids, abundant secondary metabolites in plants, aporphines constitute a class of compounds with interesting biological activities, including anticancer effects. The present study evaluated the anticancer activities of 14 substances, including four aporphine derivatives acquired through the biomonito...
journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1007/s10637-019-00784-6
更新日期:2020-02-01 00:00:00
abstract:PURPOSE:To summarize the safety experience obtained from phase II clinical trials conducted with trabectedin as single-agent therapy in patients with advanced solid tumors. METHODS:This retrospective analysis includes 1,132 patients exposed to trabectedin in 19 phase II trials carried out between February 1999 and Apr...
journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1007/s10637-011-9662-0
更新日期:2012-06-01 00:00:00
abstract::LY2457546 is a potent and orally bioavailable inhibitor of multiple receptor tyrosine kinases involved in angiogenic and tumorigenic signalling. In biochemical and cellular assays, LY2457546 demonstrates potent activity against targets that include VEGFR2 (KDR), PDGFRβ, FLT-3, Tie-2 and members of the Eph family of re...
journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1007/s10637-011-9640-6
更新日期:2012-06-01 00:00:00
abstract::P-cadherin is frequently up-regulated in solid tumors such as gastric, colon, lung, pancreatic and breast cancers. Although P-cadherin promotes cadherin-mediated cell adhesion, the gastric cancer-linked regulation of P-cadherin has not been extensively investigated. In this study, we found epigenetic regulation of P-c...
journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1007/s10637-011-9710-9
更新日期:2012-08-01 00:00:00
abstract::A novel schedule of 5-fluorouracil administration has been developed for biochemical modulation studies. In combination with the pyrimidine synthesis inhibitor PALA, 5-fluorouracil has been given as a 24-hour infusion, repeated weekly: a dose of 2600 mg/m2 is well tolerated. To identify a suitable dose of 5-fluorourac...
journal_title:Investigational new drugs
pub_type: 临床试验,杂志文章
doi:10.1007/BF00874152
更新日期:1993-05-01 00:00:00
abstract::We investigated proliferation and apoptosis induction in Jurkat T-leukemia cells by the new isothiocyanate 4-(methylthio)butylisothiocyanate (MTBITC). To help elucidate whether the effects of MTBITC are specific for cancer cells, we tested MTBITC on freshly isolated, non-transformed human peripheral T lymphocytes. The...
journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1023/B:DRUG.0000011788.19754.54
更新日期:2004-04-01 00:00:00
abstract::Fifteen patients with advanced carcinoma of the breast who had failed prior chemotherapy, were treated with recombinant gamma interferon at a dose of 2mg/m2 (1mg = 2.4 X 10(7) international units) intravenously for five consecutive days every other week. The median patient age was 51 and all patients had a performance...
journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1007/BF00173511
更新日期:1986-01-01 00:00:00
abstract::Echinomycin is a quinoxaline antibiotic that was originally isolated from Streptomyces echinatus. Based on its antitumor activity against two i.p. implanted murine tumors, the B16 melanoma, and the P388 leukemia, it was brought into clinical trials by the National Cancer Institute. Recent studies on its cytotoxic acti...
journal_title:Investigational new drugs
pub_type: 临床试验,杂志文章,评审
doi:10.1007/BF00170766
更新日期:1985-01-01 00:00:00
abstract::Apoptin is a nonstructural protein encoded by one of the three open reading frames of the chicken anemia virus genome. It has attracted a great deal of interest due to its ability to induce apoptosis in multiple transformed and malignant mammalian cell lines without affecting primary and non-transformed cells. However...
journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1007/s10637-017-0431-6
更新日期:2017-06-01 00:00:00
abstract::A series of novel 5-(4-methyl-benzylidene)-thiazolidine-2,4-dione derivatives 6 (a-d) and 7 (a-g) were synthesized with different substituted aromatic sulfonyl chlorides (R-SO(2)-Cl) and alkyl halides (R-X) and were characterized by (1)H NMR, LC/MS, FTIR and elemental analyses. All the compounds synthesised were evalu...
journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1007/s10637-008-9130-7
更新日期:2008-10-01 00:00:00
abstract::Background This first-in-human phase 1 study assessed the safety of TAS-114, a novel deoxyuridine triphosphatase inhibitor, combined with S-1 to determine its maximum tolerated dose (MTD) and recommended dose (RD). Methods In this dose-escalation study with a 3 + 3 design, TAS-114 and S-1 were concurrently administere...
journal_title:Investigational new drugs
pub_type: 杂志文章,多中心研究
doi:10.1007/s10637-018-0697-3
更新日期:2019-06-01 00:00:00
abstract::Six patients with incurable malignancies were originally treated with vitamin E, 3200 IU/day for fourteen days, followed by the same dose of vitamin E daily plus LCV (20 mg/m2 i.v. bolus daily x 5) with 5FU (425 mg/m2 i.v. bolus immediately following LCV). The same schedule of LCV and 5FU was repeated 4 weeks later, t...
journal_title:Investigational new drugs
pub_type: 临床试验,杂志文章
doi:10.1023/a:1006484031959
更新日期:2001-01-01 00:00:00
abstract::This study aimed to analyze the oncology "drug lag" (i.e., the delay in time required for the approval of oncology drugs) in Japan compared with that in the United States of America (US) or the European Union (EU) and to identify the factors associated with this lag. Using publicly available information, we collected ...
journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1007/s10637-011-9638-0
更新日期:2011-08-01 00:00:00
abstract::Background It would be useful to have criteria for predicting long-term treatment responses to immune checkpoint inhibitors (ICIs). Maximum depth of response correlates with treatment outcomes among patients receiving programmed death protein 1 axis inhibitors for non-small cell lung cancer (NSCLC). We investigated as...
journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1007/s10637-019-00770-y
更新日期:2019-12-01 00:00:00
abstract::Idarubicin (DMDR), a new analogue of daunorubicin, was administered orally once every 3 weeks at the dose of 40 to 45 mg/m2 to 20 evaluable patients with non-Hodgkin's lymphomas (NHL). Eighty-six percent of patients with favorable histology and 54% with unfavorable histology (intermediate and high grade as IWF) achiev...
journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1007/BF00179594
更新日期:1986-01-01 00:00:00
abstract::Alectinib, the second generation anaplastic lymphoma kinase (ALK) inhibitor, has significant potency in patients with ALK rearrangement positive non-small cell lung cancer (NSCLC), and its toxicity is generally well tolerable. We report a patient who developed severe acute interstitial lung disease after alectinib tre...
journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1007/s10637-015-0284-9
更新日期:2015-10-01 00:00:00
abstract::Taxol was administered as a 24-hour continuous infusion at 250 mg/m2 in this Phase II trial in patients with adenocarcinomas of the upper gastrointestinal tract (UGIT). Twenty-five patients were entered between July 1991 and June 1992, twenty-three were eligible and were evaluated for toxicity and twenty-two were asse...
journal_title:Investigational new drugs
pub_type: 临床试验,杂志文章
doi:10.1007/BF00873804
更新日期:1995-01-01 00:00:00
abstract::Glioblastoma is a fast-growing primary brain tumor observed in adults with the worst prognosis. Preclinical studies have demonstrated the encouraging anticancer activity of statins. This study evaluated the efficacy of atorvastatin in combination with standard therapy in patients with glioblastoma. In this prospective...
journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1007/s10637-020-00992-5
更新日期:2020-08-27 00:00:00
abstract::Cancer is one of the major causes of death for non-transmissible chronic diseases worldwide. Conventional treatments including surgery, chemotherapy and external beam radiotherapy are generally far from curative. Complementary therapies are attempted for achieving more successful treatment response. Systemic targeted ...
journal_title:Investigational new drugs
pub_type: 杂志文章,评审
doi:10.1007/s10637-011-9758-6
更新日期:2012-10-01 00:00:00
abstract::Pharmacological intervention to reduce CRC mortality entails the use of oral agents that can avert carcinogenesis. Silibinin, a major component of silymarin isolated from Silybum marianum (L.) was found to possess attractive remedial features. An in vivo study was designed to elucidate the effect of silibinin on the f...
journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1007/s10637-009-9237-5
更新日期:2010-06-01 00:00:00
abstract:PURPOSE:Amrubicin is a novel 9-aminoanthracycline. This multicenter phase II study was conducted to evaluate the efficacy and safety of amrubicin in patients with non-small-cell lung cancer (NSCLC). PATIENTS AND METHODS:Sixty-one previously untreated patients with stage III or IV NSCLC were entered this study. The pat...
journal_title:Investigational new drugs
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1007/s10637-006-5937-2
更新日期:2006-03-01 00:00:00
abstract:INTRODUCTION:Continuous efforts from scientists of diverse fields are necessary not only to better understand the mechanism by which multidrug resistant (MDR) cancer cells occur, but also to boost the discovery of new cytotoxic compounds. This work was designed to assess the cytotoxicity and the mechanism of action of ...
journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1007/s10637-014-0137-y
更新日期:2014-12-01 00:00:00
abstract::Sunitinib is an oral antityrosine kinase inhibitor that has antiangiogenic and antitumor activities. It has been approved for the treatment of advanced RCC and for imatinib-refractory gastrointestinal stromal tumors (GIST). Tumor lysis syndrom can occur in solid tumors. We report a case of patient with metastatic RCC ...
journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1007/s10637-009-9275-z
更新日期:2010-10-01 00:00:00
abstract::Menogaril, a semisynthetic anthracycline antibiotic, was administered to patients with metastatic adenocarcinoma of the prostate. Forty-five patients with measurable disease and 45 patients with evaluable disease received 150-200 mg/m2 over 1 hour every 28 days. There were three partial responses (PR) among 87 patient...
journal_title:Investigational new drugs
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1007/BF00873240
更新日期:1994-01-01 00:00:00