Abstract:
:We previously produced evidence that the human mammary-carcinoma cell line 8701-BC expresses several metalloproteinases (MMP-1, -2, -9, and -10) and their tissue inhibitors). In order to obtain a better understanding of the environmental control over gelatinolytic activities, we have tested the enzyme production of 8701-BC cells, at time intervals after plating on different collagen substrates, i.e., types I, III, IV, V and OF/LB, used as films in culture dishes. Proteinase activities, released in the conditioned culture media, were tested by zymography on SDS-PAGE, and by quantificative analyses, using 14C carboxymethylated transferrin as substrate in a liquid incubation medium. Enzymatic activities varied with time and were inversely related to cell densities, with minimum values at cell confluence. The enzymatic activity was positively supported by collagen substrates, with a maximal increase in activity when OF/LB collagen was used. In addition to the known MMPs, we found a proteinase with an M(r) of about 20 kDa, which displayed higher activity at 48 hr after cell plating and gradually decreased with cell increment. In contrast to the other MMPs, this proteinase is inhibited by soybean trypsin inhibitor, but it does not display a complete identity with trypsin, since it does not digest casein and is not inhibited by other serine proteinase inhibitors.
journal_name
Int J Cancerjournal_title
International journal of cancerauthors
Minafra S,Giambelluca C,Andriolo M,Pucci-Minafra Idoi
10.1002/ijc.2910620622subject
Has Abstractpub_date
1995-09-15 00:00:00pages
777-83issue
6eissn
0020-7136issn
1097-0215journal_volume
62pub_type
杂志文章abstract::Evidence suggests that the majority of lung cancer patients have tumour-derived genetic alterations in circulating plasma DNA, and that this may be developed as a diagnostic tool. To this end, we have studied 60 individuals attending bronchoscopy clinic, with symptoms suspicious of lung cancer, for genetic alterations...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/1097-0215(200002)9999:9999<::aid-ijc1058>3
更新日期:2001-02-01 00:00:00
abstract::The macrophage electrophoretic mobility (MEM) test was performed on guinea-pig macrophages treated with the interaction products of encephalitogenic protein and peripheral lymphocytes from 44 patients with colorectal cancer and 33 "healthy" controls. In 54/60 tests involving patients, statistically significant reducti...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910190407
更新日期:1977-04-15 00:00:00
abstract::A randomized clinical trial designed to compare the effectiveness of cytoxan (CTX) alone versus a combination consisting of CTX, vincristine (Oncovin) and methotrexate (COM) in the treatment of Burkitt's lymphoma (BL) was carried out. Nineteen patients were selected at random to receive CTX alone while 21 received COM...
journal_title:International journal of cancer
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1002/ijc.2910170404
更新日期:1976-04-15 00:00:00
abstract::gamma-L-glutaminyl-4-hydroxy-3-iodobenzene (I-GHB), a novel iodinated analog of gamma-L-glutaminyl-4-hydroxybenzene (GHB), demonstrates greater anti-tumor activity in human and in murine melanoma cell lines. These phenolic amides are substrates for gamma-glutamyltranspeptidase (GGTP; E.C. 2.3.2.2), a cell-membrane-ass...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910560620
更新日期:1994-03-15 00:00:00
abstract::Patients with head-and-neck cancer commonly have immune defects. It was reported that these patients have raised serum IgA levels. We investigated whether IgA-anti-Fab autoantibodies, which occur in association with immune dysfunction, are present in patients with head-and-neck cancer. Sera of 101 patients with squamo...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910570109
更新日期:1994-04-01 00:00:00
abstract::Antitumor immunity in chronic lymphocytic leukemia (CLL) is hampered by highly dysfunctional T-cells. Although certain T-cell subsets have been reported to be of prognostic significance in this disease, their interplay is complex and it remains incompletely understood which of these subsets significantly drive CLL pro...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.28884
更新日期:2014-11-15 00:00:00
abstract::Elevated plasma lipoprotein(a) has been associated with an increased risk of cardiovascular disease. We report a significant elevation of total plasma apolipoprotein(a) levels in cancer patients compared with hospitalized control patients and normal healthy blood donors. Of the cancer patients studied, 48% had levels ...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910430212
更新日期:1989-02-15 00:00:00
abstract::Human papillomavirus (HPV) is an important factor for the development of tonsillar squamous cell carcinoma (TSCC). In addition, patients with HPV-positive TSCC have a better clinical outcome than patients with HPV-negative TSCC. Although, HPV is an important prognostic marker, additional biomarkers are needed to bette...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.27635
更新日期:2013-01-01 00:00:00
abstract::Phenotypic and functional characteristics of tumor-infiltrating lymphocytes (TIL) obtained from human primary and metastatic liver tumors were studied. Lymphocytes isolated from 18 tumors and autologous (A) peripheral blood (6 cases) were phenotyped by 2-color flow cytometry and cloned in a limiting dilution system, w...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910460521
更新日期:1990-11-15 00:00:00
abstract::A population-based case-control study of risk factors for renal-cell carcinoma was conducted in Denmark from 1989 to 1992. A total of 368 histologically verified cases and 396 controls were included. Information on weight, height, physical activity and reproductive factors were collected in a structured interview, alo...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910560113
更新日期:1994-01-02 00:00:00
abstract::Apoptin is a chicken anemia virus-derived, p53-independent, bcl-2-insensitive apoptotic protein with the ability to specifically induce apoptosis in tumor cells. To explore the use of the Apoptin gene in cancer gene therapy, we constructed a recombinant fowlpox virus expressing the Apoptin protein (vFV-Apoptin) and co...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.22215
更新日期:2006-12-15 00:00:00
abstract::Over-expression of the HER2/neu (HER2) proto-oncogene in breast carcinoma imparts an enhanced metastatic potential. Metastasis requires escape of the tumor cell from the vasculature into subjacent tissue, a transmigration event across an endothelial cell (EC) monolayer. EC retraction has been reported to precede trans...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/1097-0215(200002)9999:9999<::aid-ijc1061>3
更新日期:2001-02-01 00:00:00
abstract::Epithelial ovarian cancer (EOC) is a complex disease comprising discrete histological and molecular subtypes, for which survival rates remain unacceptably low. Tailored approaches for this deadly heterogeneous disease are urgently needed. Efflux pumps belonging to the ATP-binding cassette (ABC) family of transporters ...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.33005
更新日期:2020-10-15 00:00:00
abstract::To evaluate the relation between the degree of lymph node metastasis and the growth potential of tumour cells and the local immune function in gastric cancer, we analyzed data on 444 patients with advanced serosally invasive gastric cancer who underwent curative gastrectomy. Tumour growth potential was evaluated based...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/(sici)1097-0215(19970422)74:2<224::aid-ijc
更新日期:1997-04-22 00:00:00
abstract::Breast cancer can be classified into molecular sub-types that have distinct survival patterns. We evaluated the prognostic significance of breast cancer sub-types in a cohort of women taking part in the NEAT and BR9601 clinical trials comparing cyclophosphamide, methotrexate and fluorouracil (CMF) with ECMF (epirubici...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.28150
更新日期:2013-09-15 00:00:00
abstract::Cigarette smoking and alcohol consumption were examined as potential risk factors in a case-control study of primary liver cancer (PLC). A total of 165 PLC cases and 465 matched controls from several US hospitals were studied. A weak but statistically significant (p less than 0.05) dose-response relationship was obser...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910420304
更新日期:1988-09-15 00:00:00
abstract::The association between the consumption of preserved foods in infancy, childhood and adulthood and the risk of nasopharyngeal carcinoma was investigated in a case-control study among Singapore Chinese: 200 cases (73% male) were compared with 406 hospital controls (71% male). Significantly increased risks were observed...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910590502
更新日期:1994-12-01 00:00:00
abstract::Benzo(a)pyrene and benz(a) anthrancene which, in contrast to the K-region epoxides benzo(a)pyrene 4,5-oxide and benz(a)anthracene 5,6-oxide, are not mutagenic to Salmonella typhimurium TA 1537 in the absence of mammalian enzyme preparations, were activated by liver microsomes from C3H mice, which had not received any ...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910180408
更新日期:1976-10-15 00:00:00
abstract::Peripheral blood leukocytes from patients with confirmed pulmonary neoplasia were tested for cytotoxicity against cultured cells derived from lung tumours of various histological types, foetal and normal adult lung tissue and tumours arising in organs other than the lung. Leukocytes from 73 percent of patients were cy...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910150216
更新日期:1975-02-15 00:00:00
abstract::Interleukin-11(rhIL-11) is a cytokine that has been shown to enhance the recovery of bone marrow and intestinal crypt cells after cytotoxic insult with radiation or anticancer drugs. The current study examined the effects of rhIL-11 on the response of CEM human lymphoblastic leukemia cells and on the EMT-6 murine mamm...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/(SICI)1097-0215(19960917)67:6<864::AID-IJC
更新日期:1996-09-17 00:00:00
abstract::Elevated platelet counts in patients diagnosed with malignant tumors were first described more than 100 years ago. Today it is well known that in many types of solid tumors, thrombocytosis at the time of diagnosis is associated with shorter survival. From this well-documented clinical correlation between platelet coun...
journal_title:International journal of cancer
pub_type: 杂志文章,评审
doi:10.1002/ijc.27441
更新日期:2012-06-15 00:00:00
abstract::Using a recently developed autochthonous mouse model of squamous cell carcinoma (SCC), a combination therapy targeting polyamine metabolism was evaluated. The therapy combined 2-difluoromethylornithine (DFMO), an inhibitor of ornithine decarboxylase (ODC), and MQT 1426, a polyamine transport inhibitor. In 1 trial last...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.21621
更新日期:2006-05-01 00:00:00
abstract::We derived from blood lymphocytes of a melanoma patient a large number of cytolytic T-cell clones directed against a cell line of the autologous tumor. Three distinct groups of antigens were recognized by these CTL on the autologous melanoma cells: group A consisted of stable antigens present on all sublines, whereas ...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910440413
更新日期:1989-10-15 00:00:00
abstract::Allelic loss at the short arm of chromosome 11 is one of the most common and potent events in the progression and metastasis of breast cancer. Here, we present evidence that the Integrin-Linked Kinase (ILK) gene maps to the commonly deleted chromosome 11p15.5 and suppresses malignant growth of human breast cancer cell...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.20340
更新日期:2004-10-10 00:00:00
abstract::To identify characteristics of gastric cancer associated with hereditary non-polyposis colorectal cancer (HNPCC), we gathered clinical data and tumor samples relating to patients recorded in the Finnish HNPCC registry. Our series included 51 families with a characterized mutation and/or that met the Amsterdam criteria...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/(sici)1097-0215(19971021)74:5<551::aid-ijc
更新日期:1997-10-21 00:00:00
abstract::The LIM 1863 colon carcinoma cell line grows in the form of morphologically and functionally organized organoids. Cells are arranged around a central lumen with a brush border and nuclei are polarized to the periphery. The organoids contain 3 morphological cell types (columnar, goblet and caveolated cells). By agar cl...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910500515
更新日期:1992-03-12 00:00:00
abstract::Chromosome 17 is a frequent target during breast-cancer formation and progression. It has been shown to be affected by allele losses at multiple sites, as well as by DNA amplification. Our aim was to delineate a map of the genetic alterations on chromosome 17 in a given set of breast tumors. To this end we analyzed 15...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910560208
更新日期:1994-01-15 00:00:00
abstract::Epigenetic modification of gene expression plays an important role in the development of human cancers. The inactivation of SPARC through CpG island methylation was studied in colon cancers using oligonucleotide microarray analysis and methylation specific PCR (MSP). Gene expression of 7 colon cancer cell lines was ev...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.22706
更新日期:2007-08-01 00:00:00
abstract::We have recently reported that glioblastoma (GB)-initiating cells (GIC) with low expression and/or mutation of TP53 and high expression of PI3K ("responder" genetic profile) can be effectively and safely radiosensitized by the ATM inhibitor KU60019. We report here on drug's diffusion and elimination from the animal bo...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.29121
更新日期:2015-03-15 00:00:00
abstract::Vascular endothelial growth factor (VEGF) is an angiogenic factor that also functions as an autocrine growth factor for VEGF receptor (VEGFR)-2(+) melanomas. In multiple studies, VEGFR-2 was detected by immunostaining in 78-89% of human melanoma cells, suggesting that most patients with melanoma would benefit from an...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.25963
更新日期:2011-12-15 00:00:00