Abstract:
:9-cis-Retinoic acid (9cRA) and 1alpha,25-dihydroxyvitamin D3 (1,25D) show promise as potential chemopreventive agents. We examined 9cRA and 1,25D, alone and in combination, for their potential to inhibit carcinogen (NNK)-induced lung carcinogenesis in A/J mice. A/J mice (n=14/group) were treated with 9cRA (7.5, 15, or 30 mg/kg diet), 1,25D (2.5 or 5.0 microg/kg diet), or a combination of 9cRA (15 mg/kg diet) plus 1,25D (2.5 microg/kg diet) for 3 weeks before and 17 weeks after carcinogen injection. Lung tumor incidence, tumor multiplicity, plasma 1,25D levels and kidney expression of vitamin D 24-hydroxylase (CYP24) were determined. Compared to carcinogen-injected controls, mice receiving 9cRA supplementation had significantly lower tumor multiplicity at all doses (decreased 68-85%), with body weight loss at the higher doses of 9cRA. Mice receiving 1,25D supplementation had significantly lower tumor incidence (decreased 36 and 82%) and tumor multiplicity (decreased 85 and 98%), but experienced significant body weight loss, kidney calcium deposition, elevated kidney CYP24 expression and decreased fasting plasma 1,25D levels. Although, there was no apparent influence on chemopreventive efficacy, addition of 9cRA to 1,25D treatment effectively prevented the weight loss and kidney calcification associated with 1,25D treatment alone. These data demonstrate that 9cRA and 1,25D, alone or combined, can inhibit lung tumor promotion in the A/J mouse model. Combining 1,25D with 9cRA has the potential to mitigate the toxicity of 1,25D, while preserving the significant effect of 1,25D treatment against lung carcinogenesis. The underlying mechanism behind this effect does not appear to be related to retinoid modulation of vitamin D catabolism.
journal_name
Int J Cancerjournal_title
International journal of cancerauthors
Mernitz H,Smith DE,Wood RJ,Russell RM,Wang XDdoi
10.1002/ijc.22462subject
Has Abstractpub_date
2007-04-01 00:00:00pages
1402-9issue
7eissn
0020-7136issn
1097-0215journal_volume
120pub_type
杂志文章abstract::The purpose of this analysis was to correlate isotope selection with the urinary symptoms of patients who received a combination of external beam radiotherapy (EBRT) and a transperineal interstitial permanent prostate brachytherapy (TIPPB) boost with either a (103)palladium ((103)Pd) or a (125)iodine ((125)I) radioiso...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.10350
更新日期:2001-01-01 00:00:00
abstract::General cell-mediated immune (CMI) functions in NPC patients were investigated by the in vivo Mantoux and in vitro lymphocyte response to PHA assays. Thirty-eight (50%) of 76 untreated NPC patients were hyporesponsive in the Mantoux assay compared to 27 (25%) of 110 control patients. Forty-three (65.2%) of 66 untreate...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910180202
更新日期:1976-08-15 00:00:00
abstract::Regional lymph-node (LN) lymphocytes may constitute an important defence against the spread of human melanoma beyond regional LNs. The present study was directed to clonal analysis of lymphocytes cultured either directly from the LNs or after stimulation in cultures with autologous melanoma (MLTC). T-cell clones deriv...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910510209
更新日期:1992-05-08 00:00:00
abstract::Six permanent human tumor cell lines (OV-MZ-1 to 6) were established from 6 patients with serous adenocarcinomas of the ovary. These cell lines were derived from both solid tumors and ascites, from pre-treated and untreated patients, and are available over a range of in vitro passage numbers. The tumor cells grow as m...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910520115
更新日期:1992-08-19 00:00:00
abstract::In order to examine whether or not the expression of the apoptosis-related receptor Fas (CD-95/APO-1) and its ligand (FasL) has relevance for patient survival, immunohistochemistry was used to analyze the proteins of both factors in 164 non-small cell lung carcinomas. Patients with Fas-positive tumors exhibited signif...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/(sici)1097-0215(19990621)84:3<239::aid-ijc
更新日期:1999-06-21 00:00:00
abstract::In order to study the mechanisms responsible for resistance to CDDP, 5 human tumor cell lines were made resistant to CDDP by repeated in vitro exposures. After cloning it was found that the cell lines developed were between 3.3-fold and 17-fold more resistant to CDDP than the parental cell lines at the IC90. These lin...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910470214
更新日期:1991-01-21 00:00:00
abstract::Family history (FH) of lung cancer is an established risk factor for lung cancer, but the modifying effect of smoking in relatives has been rarely examined. Also, the role of FH of nonmalignant lung diseases on lung cancer risk is not well known. We examined the role of FH of cancer and nonmalignant lung diseases in l...
journal_title:International journal of cancer
pub_type: 杂志文章,随机对照试验
doi:10.1002/ijc.24283
更新日期:2009-07-01 00:00:00
abstract::Human mammary carcinoma cell lines (MCF-7) were analysed for their hormone sensitivity before and after transfection with a v-Ha-ras oncogene or with a neomycin-resistance gene followed by selection in vitro or in vivo. Our aim was to test how the expression of the ras oncogene would influence the estradiol sensitivit...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910460332
更新日期:1990-09-15 00:00:00
abstract::Recently, air pollution has been classified as a carcinogen largely on the evidence of epidemiological studies of lung cancer. However, there have been few prospective studies that have evaluated associations between fine particulate matter (PM2.5 ) and cancer at lower concentrations. We conducted a prospective analys...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.30255
更新日期:2016-11-01 00:00:00
abstract::Trends in the incidence of stomach cancer among 52,604 patients notified to the National Swedish Cancer Registry in 1960 through 1984 were analysed. Age-standardized incidence rates declined throughout the period, from 47.1 to 24.6 per 10(5) in males and from 23.8 to 12.7 per 10(5) in females. Among males the decline ...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910470405
更新日期:1991-02-20 00:00:00
abstract::To identify CTL-directed antigens in gastrointestinal cancer, we have investigated antigens recognized by the HLA-A2-restricted CTL line established from T cells infiltrating into colon cancer and report herein cleavage and polyadenylation specificity factor (CPSF) as a potent antigen holding peptides capable of induc...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.10377
更新日期:2002-05-20 00:00:00
abstract::This study reports the induction of interferon (IFN) in human mononuclear cells (MNC) by hematopoietic tumor cells. Only 3 out of 15 cell lines were capable of inducing IFN in the mixed leukocyte/tumor-cell reaction (MLTR). K562, a pluripotent stem cell line and DUTKO-I, a hybrid between K562 and Daudi (Burkitt lympho...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910340108
更新日期:1984-07-15 00:00:00
abstract::Activity of Janus kinase 2 (JAK2) in the JAK2/STAT5 signaling pathway is critically controlled by suppressor of cytokine signaling-1 (SOCS-1). We have previously shown that SOCS-1 is biallelically mutated in the primary mediastinal B-cell lymphoma (PMBL) cell line MedB-1, resulting in impaired JAK2 degradation and sus...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.21485
更新日期:2006-04-15 00:00:00
abstract::The epidemiological literature reports inconsistent associations between consumption or circulating concentrations of micronutrients and breast cancer risk. We investigated associations between genetically predicted concentrations of 11 micronutrients (beta-carotene, calcium, copper, folate, iron, magnesium, phosphoru...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.33246
更新日期:2021-02-01 00:00:00
abstract::Oncostatin M is a leukocyte product that has been reported to have anti-proliferative effects directly on melanoma and other cancer cell lines in vitro. However, its function(s) in cancers in vivo appears complex and its roles in cancer growth in lungs are unknown. Here, we show that OSM promotes marked growth of tumo...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.29055
更新日期:2015-02-15 00:00:00
abstract::The DNA of 22 fibrosarcomas, newly induced in BALB/c mice by subcutaneous doses of 3-methylcholanthrene (3-MCA), was tested in NIH 3T3 transformation assay. Activation of K-ras and N-ras was found in 7 and 3 cases respectively. No H-ras activation was detected. Polymerase chain reaction and oligonucleotide hybridizati...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910470423
更新日期:1991-02-20 00:00:00
abstract::The translation-initiation factor eIF4E is rate-limiting for protein synthesis, and its over-expression results in oncogenic transformation of mammalian cells. eIF4E facilitates the synthesis of several powerful tumor angiogenic factors (FGF-2 and VEGF) by selectively enhancing their translation. In breast carcinomas,...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/(sici)1097-0215(19990209)80:4<516::aid-ijc
更新日期:1999-02-09 00:00:00
abstract::We have previously shown that AEV infection of leukosis-free chickens provokes an erythroleukemia in the infected birds, and that the target cell for virus transformation is most likely an early pro-erythroblast comparable to the BFU-E. The virus infection correlates with a block in differentiation which was studied a...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910290511
更新日期:1982-05-15 00:00:00
abstract::Electroporation-based mono-gene therapy has received great interest in recent years but coadministration of different therapeutic genes for treatment of tumors has not been well explored. We hypothesize that electroporation is capable of delivering multiple genes that induce an additive or synergistic antitumor effect...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.22100
更新日期:2006-11-01 00:00:00
abstract::The expression of oestrogen (ER), progesterone (PR) and androgen (AR) receptors in female breast cancer was investigated by immunohistochemistry on snap-frozen tissue specimens of a series of 100 breast cancers. For detection of the AR we used a recently developed mouse monoclonal antibody specific for the N-terminal ...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910520415
更新日期:1992-10-21 00:00:00
abstract::The epidermal growth factor receptor (EGFR) is frequently expressed in triple-negative breast cancer (TNBC) and is a marker of poor prognosis in this patient population. Because activating mutations in this kinase are very rare events in breast cancer, we screened breast tumor gene expression profiles to examine the d...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.28295
更新日期:2013-12-01 00:00:00
abstract::The role of retinoic acid receptor (RAR) expression in sensitivity to N-(4-hydroxyphenyl)retinamide (4HPR or fenretinide) as well as on the tumorigenicity of human ovarian carcinoma cells was examined. Two human ovarian cancer cell lines, A2780 and IGROV-1, with a 10-fold difference in sensitivity to 4HPR were chosen ...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/(sici)1097-0215(19990531)81:5<829::aid-ijc
更新日期:1999-05-31 00:00:00
abstract::Several tumour-derived factors have recently been identified which induce tissue factor (TF) expression in endothelial cells in vitro. However, there is only limited evidence that endothelial cells lining tumour blood vessels express elevated procoagulant activity (PCA) in vivo. We have investigated the effects of hum...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/(SICI)1097-0215(19960611)66:6<784::AID-IJC
更新日期:1996-06-11 00:00:00
abstract::Although in the normal healthy organism angiogenesis is a tightly regulated process, under a variety of circumstances it may contribute to disease states. These include the growth of solid tumors, the hematogenous spread of tumor cells and the growth of metastasis. Our aim was to measure the levels of 5 angiogenic cyt...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/(sici)1097-0215(20000101)85:1<40::aid-ijc7
更新日期:2000-01-01 00:00:00
abstract::A single treatment of chick embryo fibroblasts with DNA recovered from chick embryo fibroblasts productively infected and transformed with four different strains of RSV, or productively infected with two different strains of RAV, resulted in virus production and cell transformation (in the case of RSV) two or three p...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910150109
更新日期:1975-01-15 00:00:00
abstract::Vitamin D has anticarcinogenic properties and might influence colorectal cancer (CRC) risk, but the epidemiological evidence is inconsistent. Many mechanisms of action for vitamin D have been proposed, with some of them initiating via its binding to the vitamin D receptor (VDR). Using a large Scottish case-control stu...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.23769
更新日期:2008-11-01 00:00:00
abstract::To assess the effect of different hospital types or surgical volume on the survival of ovarian cancer patients, a nationwide and population-based analysis was carried out in Finland. The study included all 3,851 ovarian cancer patients operated from 1983-94. The patients were classified according to the hospital of th...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.10754
更新日期:2002-12-10 00:00:00
abstract::This work demonstrates the need for the continued presence of lipopolysaccharide (LPS) for tumor necrosis factor (TNF) production by thioglycollate-induced peritoneal macrophages. Removal of LPS at any time resulted in the abrupt cessation of further TNF production. The readdition of LPS resulted in further production...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910380121
更新日期:1986-07-15 00:00:00
abstract::Fecal occult blood test (FOBT) screening for colorectal cancer (CRC) is implemented in several countries. Approximately half of all FOBT-positive persons have screen-detected adenomas. Despite removal of these, patients with large/multiple adenomas have increased risk of later developing new advanced adenomas and CRC....
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.32850
更新日期:2020-08-15 00:00:00
abstract::Over 10% of children with Wilms tumor (WT) have an underlying cancer predisposition syndrome (CPS). Cognizant of increasing demand for genetic evaluation and limited resources across health care settings, there is an urgent need to rationalize genetic referrals for this population. The McGill Interactive Pediatric Onc...
journal_title:International journal of cancer
pub_type: 杂志文章,多中心研究
doi:10.1002/ijc.32561
更新日期:2020-02-15 00:00:00