Abstract:
:Many tumors are impervious to anticancer agents. Resistance due to lack of cytotoxic penetration into the tumor is often overlooked but can play a significant role in undermining therapy. Insufficient and irregular vascularization of tumors is a possible barrier to drug delivery, but there are others, e.g., impaired vessel permeability and poor interstitial transport. We evaluated the importance of tumor vessel density in the availability of melphalan to tumors. A nude mouse tumor model with different vascularization due to a single-gene deletion of hypoxia-inducible factor 1alpha (HIF-1alpha(+/+) and HIF-1alpha(-/-) embryonic stem cell-derived tumors) was used. The availability of melphalan to HIF-1alpha(+/+) (n = 20) and HIF-1alpha(-/-) (n = 23) tumors was not significantly different (p = 0.12). Furthermore, in the various subgroup analyses accentuating the difference in vessel density, no significant correlation between vessel density and melphalan availability was found. In the second part of the study, melphalan, was demonstrated to be transported in blood in mice with a distribution of 24% in erythrocytes vs. 76% in plasma. A strong correlation (r = 0.93, p < 0.000001) between melphalan concentrations in plasma and erythrocytes was found, indicating an equilibrium between these 2 compartments. Plasma and erythrocyte concentrations of melphalan are correlated with the tumor availability of melphalan (r = 0.66 and 0.64, respectively, both p < 0.001). These data suggest that tumor vessel density is not an important predictor of the tumor availability of small cytotoxic drugs such as melphalan and indicate the importance of erythrocytes in the transport of melphalan.
journal_name
Int J Cancerjournal_title
International journal of cancerauthors
Wildiers H,Guetens G,de Boeck G,Landuyt W,Verbeken E,Highley M,de Bruijn EA,van Oosterom ATdoi
10.1002/ijc.10391keywords:
subject
Has Abstractpub_date
2002-06-01 00:00:00pages
514-9issue
4eissn
0020-7136issn
1097-0215journal_volume
99pub_type
杂志文章abstract::The effect of EGF on the soft agar colony-forming ability of fresh human tumor cells was assessed in 40 specimens obtained from various types of carcinoma including those of the breast, endometrium ovary, and other sites. Cells from four established human tumor cell lines (three breast and one endometrial) were also i...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910300611
更新日期:1982-12-15 00:00:00
abstract::No animal model exists for the in vivo growth of Hodgkin's-lymphoma-derived cells. Neither unmanipulated Hodgkin's-disease(HD)-derived cell lines nor primary biopsy tissue could be grown in nude mice. Since the severe combined immunodeficient (SCID) mouse has been reported to be a better recipient for transplanted hum...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910520610
更新日期:1992-12-02 00:00:00
abstract::Knowledge about the prevalence of human papillomavirus (HPV) on a population level is important. We conducted a large population-based study in Denmark to determine the overall and age-specific HPV prevalence, and HPV type distribution in women. Liquid-based cytology samples (SurePath) were collected consecutively. HP...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.23712
更新日期:2008-10-15 00:00:00
abstract::We evaluated the therapeutic potential of the replication competent vector VA7-EGFP, which is based on the avirulent Semliki Forest virus (SFV) strain A7 (74) carrying the EGFP marker gene in an orthotopic lung cancer tumor model in nude mice. We have previously shown that this oncolytic vector destroys tumor cells ef...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.23646
更新日期:2008-10-01 00:00:00
abstract::A case-control study of prostate cancer (PC) was undertaken in Athens, Greece. Cases were 320 patients with histologically confirmed incident disease, whereas controls were 246 patients without history or symptomatology of benign prostatic hyperplasia, treated in the same hospitals as the cases for minor diseases or c...
journal_title:International journal of cancer
pub_type: 杂志文章,多中心研究
doi:10.1002/(sici)1097-0215(19990301)80:5<699::aid-ijc
更新日期:1999-03-01 00:00:00
abstract::The coincubation of liposomes with mouse leukemia cells or fibroblasts can cause a wide of effects on their viability. These effects are not particular specific in terms of destroying the leukemic cells. However, it was observed that the combination of phosphorylcholine-cholesterol (PC-CHOL)1-liposomes, which are not ...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910270616
更新日期:1981-06-15 00:00:00
abstract::The SIL gene expression is increased in multiple cancers and correlates with the expression of mitotic spindle checkpoint genes and with increased metastatic potential. SIL regulates mitotic entry, organization of the mitotic spindle and cell survival. The E2F transcription factors regulate cell cycle progression by c...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.23665
更新日期:2008-10-01 00:00:00
abstract::Liquid-based cytology (LBC) has replaced conventional cytology (CC) for cervical cancer screening in some countries. However, it remains unclear whether LBC is superior to CC. A randomized controlled trial was conducted between August 2007 and March 2009 in Germany to compare LBC, alone and in combination with compute...
journal_title:International journal of cancer
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1002/ijc.27955
更新日期:2013-06-15 00:00:00
abstract::We have analyzed the BRAF locus on chromosome 7q34 with microsatellites for allelic changes and exons 11 and 15 of the BRAF with sequencing for mutations in 50 kidney cancers including 20 papillary, 15 conventional and 15 chromophobe renal cell carcinomas (RCC). Allelic changes at the BRAF locus were seen in 16 of the...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.11305
更新日期:2003-10-10 00:00:00
abstract::In children, renal cell carcinoma (RCC) is rare. This study is the first report of pediatric patients with RCC registered by the International Society of Pediatric Oncology-Renal Tumor Study Group (SIOP-RTSG). Pediatric patients with histologically confirmed RCC, registered in SIOP 93-01, 2001 and UK-IMPORT databases,...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.33476
更新日期:2021-01-18 00:00:00
abstract::G-protein-coupled receptor (GPCR)-stimulated androgen-independent activation of androgen receptor (AR) contributes to acquisition of a hormone-refractory phenotype by prostate cancer. We previously reported that regulator of G-protein signaling (RGS) 2, an inhibitor of GPCRs, inhibits androgen-independent AR activatio...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.26138
更新日期:2012-04-01 00:00:00
abstract::Leukoplakia is an asymptomatic, potentially malignant change in the oral mucosa. Previous studies have reported that smoking and betel quid chewing are associated with increased risk of leukoplakia; few studies have reported on these associations in populations where betel quid does not contain tobacco. We conducted a...
journal_title:International journal of cancer
pub_type: 杂志文章,meta分析,评审
doi:10.1002/ijc.23739
更新日期:2008-10-15 00:00:00
abstract::A series of 111 human bladder tumors were screened using oligonucleotide mutant specific probes, restriction enzyme analysis and single-stranded confirmation polymorphism (SSCP) for the presence of H-ras activation events. Thirty-three tumors were found to harbor H-ras mutations where a glycine to valine (G-->T) chang...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910550516
更新日期:1993-11-11 00:00:00
abstract::The metastatic dissemination of cancer cells to remote areas of the body is the most problematic aspect in cancer patients. Among cancers, melanomas are notoriously difficult to treat due to their significantly high metastatic potential even during early stages. Hence, the establishment of advanced therapeutic approac...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.31982
更新日期:2019-07-15 00:00:00
abstract::The present experiments were performed to investigate the possibility of inhibiting tumor growth in vivo with syngeneic lymphocytes sensitized in vitro on monolayers of the tumor under test, and to study the effect of a thymic humoral factor (THF) in this sensitization process. Monolayers of fibrosarcoma cells were us...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910150612
更新日期:1975-06-15 00:00:00
abstract::Spleen cells from BALB/c mice bearing syngeneic, methylcholanthrene-induced sarcomas were cultured in vitro. In agreement with previous observations, two tumor-specific activities could be demonstrated in the culture supernatants: the supernatants suppressed (blocked) specific lymph-node cell-mediated cytotoxicity dir...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910160404
更新日期:1975-10-15 00:00:00
abstract::Breast cancer (BC) is the leading cause of cancer in sub-Saharan Africa (SSA) with rapidly increasing incidence rates reported in Uganda and Zimbabwe. However, the magnitude of these rising trends in premenopausal and postmenopausal women is unknown in most African countries. We used data from the African Cancer Regis...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.33014
更新日期:2020-10-15 00:00:00
abstract::To evaluate renal pelvis and ureter (RPU) cancer risk in relation to lifetime use of analgesics, a population-based case-control study was carried out in 3 areas of the United States. Among 502 cases and 496 controls diagnosed and interviewed during 1983-1986, no significant increases in risk were found for any of the...
journal_title:International journal of cancer
pub_type: 杂志文章,多中心研究
doi:10.1002/ijc.2910620105
更新日期:1995-07-04 00:00:00
abstract::Although viral sequences closely related to feline leukaemia virus are represented in multiple copies in cellular DNA of all domestic cats, a specific fraction was present only in the virus-infected cells. This fraction was detected by viral cDNA enriched by a prior absorption of a total complementary DNA (cDNA) trans...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910220114
更新日期:1978-07-15 00:00:00
abstract::A syngeneic tumor system in DBA/2 mice consisting of a methyl-cholanthrene-induced, weakly metastatic lymphoma, L5178YE (= Eb), its spontaneous strongly metastatic variant, L5178YES (= ESb), and an unrelated, methylcholanthrene-induced, metastasizing tumor, MDAY-D2, were used to study the relationship between metastat...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910360514
更新日期:1985-11-15 00:00:00
abstract::We have established a number of cell lines from Merkel cell carcinoma (MCC) of the skin. In many respects these cell lines resemble those established from small cell lung cancer (SCLC) and it is difficult to differentiate between metastatic MCC and SCLC on morphological or histochemical criteria. Both are thought to b...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910580223
更新日期:1994-07-15 00:00:00
abstract::Expression of the MDR1 (P-glycoprotein) gene confers resistance to several classes of chemotherapeutic drugs (multi-drug resistance). Colon carcinomas frequently express high levels of MDR1 mRNA and P-glycoprotein, presumably reflecting the origin of these tumors from MDR1-expressing normal colonic cells. In 4 colon c...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910550221
更新日期:1993-09-09 00:00:00
abstract::T cell responses against malignant cells play a major role in maintaining remission and prolonging overall survival in patients after allogeneic stem cell transplantation and donor lymphocyte infusion (DLI) due to graft-versus-leukemia effect. For better characterization of the T cell responses, we assessed frequency ...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.31753
更新日期:2019-03-01 00:00:00
abstract::PDT has been reported to induce cancer cell expression of cytokines, such as IL-6 and TNF-alpha, but it has been unclear whether cytokine expression by cancer cells is directly related to the antitumor effect of PDT. We treated Lewis lung carcinoma (LLC) cells with a new photosensitizer, mono-L-aspartyl chlorin e6 (NP...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.1374
更新日期:2001-08-15 00:00:00
abstract::In 584 consecutive patients with no previous history of cancer or polypectomy, 769 adenomas were excised endoscopically and classified retrospectively according to the following parameters: macroscopic growth pattern, size, histological type, grade of dysplasia, anatomical site, presence of adenocarcinoma (ADK), numbe...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910490406
更新日期:1991-10-21 00:00:00
abstract::The emergence of mutations in the androgen receptor (AR) gene is a recurrent event during progression of prostate cancer (PCa) on androgen ablation therapy. In this study, we show that nonsense mutations that lead to carboxyl-terminal end truncated ARs are found at high frequency in metastatic PCas. Transcriptional ac...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.22830
更新日期:2007-09-15 00:00:00
abstract::The role of different types of alcoholic beverage on cancer of the upper digestive tract was investigated in a case-control study conducted in the northern part of Italy on 305 male cases of cancer of the oral cavity and pharynx, 288 of oesophageal cancer and 1621 controls admitted to hospital for acute, non-neoplasti...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910460612
更新日期:1990-12-15 00:00:00
abstract::Survivin protein is an attractive candidate for cancer immunotherapy since it is abundantly expressed in most common human cancers and mostly absent in normal adult tissues. Malignant mesothelioma (MM) is a deadly cancer associated with asbestos or erionite exposure for which no successful therapies are currently avai...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.28048
更新日期:2013-08-01 00:00:00
abstract::This population-based cohort study investigated the occurrence of familial astrocytoma among first-degree relatives of patients with astrocytoma diagnosed between 1985 and 1993 in the northern region of Sweden. The 432 cases received a questionnaire. They were asked to provide names and cancer diagnoses of first-degre...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/(sici)1097-0215(19990505)81:3<366::aid-ijc
更新日期:1999-05-05 00:00:00
abstract::Bone-marrow (BM) hematopoietic precursors are recruited into proliferative activity when colony-stimulating factors (CSF) are sequenced with chemotherapy (CT). Previous studies suggested that further CT can be safely administered only when the increased proliferative activity of these cells has subsided, because most ...
journal_title:International journal of cancer
pub_type: 临床试验,杂志文章
doi:10.1002/ijc.2910630508
更新日期:1995-11-27 00:00:00