Abstract:
:Human colon cancer cells produce and secrete a variety of polypeptide growth factors. The functional role of these growth factors, however, is poorly understood. Though the secretion of epidermal growth factor (EGF)-like activity and EGF-related molecules by human colon cancer cells in culture has been reported, it is not known whether colon cancer cells produce and secrete EGF, and the functional role of EGF in the growth control of these cells is also unknown. We have shown that EGF acts as a potent growth stimulator on the moderately differentiated Moser colon cancer cell line and as an inhibitor on the highly metastatic KM12SM cell line. In the present study, we show that EGF is produced by human colon cancer cells and characterize the levels of EGF mRNA expression and EGF protein secretion from 8 human colon cancer cell lines. The cell-surface EGF receptors on these cell lines were also characterized by radiolabeled ligand binding and Scatchard analyses. All the cell lines expressed EGF mRNA and secreted EGF. Both high- and low-affinity subtypes of EGF receptor were detected on 7 of the cell lines. These lines also secreted transforming growth factor (TGF)alpha. Some cell lines exhibited a proliferative response to treatment with either exogenous EGF or TGF alpha, while others did not respond to treatment with these growth factors. Antibody-blocking experiments, using anti-EGF or anti-EGF receptor antibody, suggested that these cell lines could be broadly classified into 2 groups in terms of their autocrine or paracrine growth regulation via the cell-surface EGF receptor: (1) cells that utilized EGF and/or TGF alpha; and (2) cells that did not utilize EGF or TGF alpha (via the cell-surface receptor), even though they secreted abundant amounts of these growth factors.
journal_name
Int J Cancerjournal_title
International journal of cancerauthors
Huang S,Trujillo JM,Chakrabarty Sdoi
10.1002/ijc.2910520625keywords:
subject
Has Abstractpub_date
1992-12-02 00:00:00pages
978-86issue
6eissn
0020-7136issn
1097-0215journal_volume
52pub_type
杂志文章abstract::We recently reported the potential of genistein in augmenting gemcitabine-induced killing of pancreatic cancer (Banerjee, S. et al., Cancer Research 2005;65:9064-72). Since cis-diaminedichloroplatinum (II) (cisplatin) is widely used against solid tumors, we further investigated whether genistein pretreatment could be ...
journal_title:International journal of cancer
pub_type: 杂志文章,收录出版
doi:10.1002/ijc.22332
更新日期:2007-02-15 00:00:00
abstract::Dimethylbenzanthracene (DMBA)-induced rat mammary tumors were analyzed for the structure and expression of the oncogenes c-Ha-ras and neu and the effects of anti-estrogen treatment. Tumor samples were divided into 3 groups, the first consisting of untreated tumors, the second of anti-estrogen (toremifene)-treated unre...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910420524
更新日期:1988-11-15 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::Cells from reticulum-cell sarcomas (RCS), tumors with a probable B-cell origin in the SJL/J mouse strain, induced a high degree of proliferation in O-bearing syngeneic lymph-node and thymus cells obtained from young non-tumours mice. Although of considerably lower magnitude, a proliferation of SJL/J thymus cells to sy...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910140615
更新日期:1974-12-15 00:00:00
abstract::Mouse IFN gamma preparations purified 30-fold were found to have direct cytolytic activity against a number of tumor and normal cells. Cell killing was determined using a sensitive, rapid and accurate assay which employed very low numbers of cells and very small quantities of interferon. The cytolytic activity of IFN ...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910300111
更新日期:1982-07-15 00:00:00
abstract::Using antisera for two specific basement membrane (b.m.) antigens such as laminin and collagen type-IV, together with electron microscopy, we have shown that fully antigenic b.m. and morphologically typical basal lamina (b.l.) are associated with normal and transformed cells of the melanocyte lineage in different ways...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910350408
更新日期:1985-04-15 00:00:00
abstract::Malignant tumors are generally characterized by extensive local tissue invasion and destruction of ECM which may be due to increased constitutive expression and activity of secreted proteases. Moreover, a large number of diverse protease activities may be constitutively over-expressed in a simultaneous or co-ordinated...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910480413
更新日期:1991-06-19 00:00:00
abstract::Leukocyte adherence inhibition (LAI) reactivity of various lymphoid tissues of dogs with canine transmissible venereal sarcoma (CTVS) at different stages of growth was determined by the tube LAI test. Tumors were classified at the time of excision into progressor, steady state, and regressor stages of growth. The LAI ...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910270314
更新日期:1981-03-15 00:00:00
abstract::Production of interleukin-6 (IL-6) by human pancreatic carcinoma cells inversely correlates with potentials for blood-borne metastasis to the liver in nude mice. IL-6 cDNA was transfected to PCI-43, one of our cultured pancreatic carcinoma cell lines that does not produce IL-6 and generates numerous metastases to the ...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/(sici)1097-0215(19980119)75:2<284::aid-ijc
更新日期:1998-01-19 00:00:00
abstract::CD44 is a transmembrane glycoprotein that binds hyaluronan, extracellular matrix proteins and growth factors. Multiple isoforms of CD44 are generated by alternative splicing of 10 separate exons (V1-V10). Expression of the variable exons has been correlated with tumour progression and metastasis in a range of cell typ...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/(SICI)1097-0215(19960516)66:4<457::AID-IJC
更新日期:1996-05-16 00:00:00
abstract::We previously demonstrated that leptin, an adipose-derived hormone, induces cell proliferation in a model of preneoplastic (IMCE (Apc(Min/+)), but not normal (YAMC (Apc(+/+)), colon epithelial cells by inducing autocrine IL-6 production and trans-IL-6 signaling. Low serum adiponectin is associated with colon, prostate...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.23436
更新日期:2008-06-01 00:00:00
abstract::The human HBL-100 cell line harbours SV40 DNA integrated in tandem at a unique site. The SV40 T-antigen expressed in these cells is defective in a function essential to the replication of the viral genome. The integrated SV40 sequences were molecularly cloned in a bacteriophage, and a subclone (plasmid pSVHBI) contain...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910440230
更新日期:1989-08-15 00:00:00
abstract::It has been suggested that phytoestrogens protect against hormone-dependent cancers. Lignans are the main class of phytoestrogens in Western diets. We conducted a prospective study of endometrial cancer and circulating levels of the main human lignan, enterolactone. The design was a case-control study nested within 3 ...
journal_title:International journal of cancer
pub_type: 杂志文章,多中心研究
doi:10.1002/ijc.22140
更新日期:2006-11-15 00:00:00
abstract::Benzene is considered a carcinogen, mostly based on evidence of causality for myeloid leukemia from high levels of exposure in occupational studies. We used United States Environmental Protection Agency National Ambient Toxics Assessment (NATA) estimates of low-level ambient benzene to examine potential associations f...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.32202
更新日期:2019-11-15 00:00:00
abstract::The effects of long-term treatment with mouse interferon on the phenotype of untransformed C3H/10T1/2 cells and cloned derivatives transformed by methylcholanthrene (MCA) and Simian virus 40 (SV40) were investigated. Continuous presence of interferon induced morphologic reversion, with the development of thick, submem...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910340119
更新日期:1984-07-15 00:00:00
abstract::Epstein-Barr virus genome-positive Burkitt's lymphoma is endemic in Africa and Papua New Guinea and in both countries the tumour is restricted to regions with holoendemic malaria. The present work has compared groups of healthy indigenous individuals living in malarious and non-malarious regions of Papua New Guinea fo...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910310609
更新日期:1983-06-15 00:00:00
abstract::alpha beta+ TCR T cells recognize peptide fragments displayed by MHC-class I or -class II molecules. Recently, additional mechanisms of antigen recognition by T cells have been identified, including CD1-mediated presentation of nonpeptide antigens. Only a limited number of CD1 antigens is retained in the mouse, i.e., ...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.10141
更新日期:2002-03-20 00:00:00
abstract::The DNA configuration of the immunoglobulin (Ig) heavy and light chain genes and the expression of B-cell-related markers were evaluated in 13 cases of non-T, non-B, non-common ("null") acute lymphoblastic leukaemia (ALL). A rearrangement of the Ig heavy-chain gene was found in all cases studied; in 5 of these a struc...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910380304
更新日期:1986-09-15 00:00:00
abstract::Folate is required for biological methylation and nucleotide synthesis, aberrations of which are thought to be the mechanisms that enhance colorectal carcinogenesis produced by folate inadequacy. These functions of folate also depend on the availability of other B-vitamins that participate in "one-carbon metabolism," ...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.23599
更新日期:2008-08-01 00:00:00
abstract::There is little long-term follow-up information about how the number of melanoma deaths and case fatality vary over time according to the measured thickness of melanoma at diagnosis. This population-based longitudinal cohort study examines patterns and trends in case fatality among 44,531 people in Queensland (Austral...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.32930
更新日期:2020-09-01 00:00:00
abstract::Neuroblastoma (NB) is the most common extracranial solid tumor of childhood. In advanced disease stages, prognosis is poor and treatments have limited efficacy, thus novel strategies are warranted. The synthetic retinoid Fenretinide (HPR) induces apoptosis in NB and melanoma cell lines. We reported an in vitro potenti...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.10991
更新日期:2003-05-01 00:00:00
abstract::Morphologic and metabolic studies have been carried out on Friend leukemia cell (FLC) tumors (grown in DBA/2 mice) or fibrosarcomas (grown in C3H/HeN or C3H/HeJ mice) shortly after peritumoral injection of recombinant mouse tumor necrosis factor (TNF) alpha. Marked vascular congestion and focal extravasation of erythr...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910420420
更新日期:1988-10-15 00:00:00
abstract::In Japan, cervical cancer incidence has increased since the late 1990s especially among young women, despite a decreasing trend in most developed countries. Here, we examined age, period and birth cohort trends in cervical cancer incidence rates from 1985 to 2012. Incidence rates were ascertained using three populatio...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.32014
更新日期:2019-05-01 00:00:00
abstract::A human ovarian adenocarcinoma cell line (PE04) has been established as a xenograft in nude mice. In vitro, this cell line is estrogen receptor (ER)-positive and its growth is stimulated by 17 beta-estradiol at concentrations between 10(-12) and 10(-6) M. When xenografted, PE04 cells remain ER-positive and also posses...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910550323
更新日期:1993-09-30 00:00:00
abstract::Inactivation of the tumor-suppressor gene p16 (MTS1/ CDKN2/INK4a) has been described in various human malignancies. Although p16 deletion has been found in various ovarian tumor cell lines, p16 inactivation by homozygous deletion or mutation has been reported only sporadically in primary ovarian carcinomas. In a compr...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/(sici)1097-0215(19980220)79:1<61::aid-ijc1
更新日期:1998-02-20 00:00:00
abstract::Specific estrogen, progesterone and androgen receptors were determined in 19 well-characterized squamous-cell carcinoma (SCC) cell lines. Ten of the lines were derived from patients with SCC of the larynx and nine were from patients with SCC originating in other areas of the head and neck. Estrogen receptors (ER) were...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910330105
更新日期:1984-01-15 00:00:00
abstract::The cell-cycle regulator p16 inhibits the complex cdk4-cyclin D1 and controls G1-S transition. In human tumors, p16 inactivation is often accomplished by homozygous deletion (HD) of its encoding gene, CDKN2A. Methylation of the 5' CpG island promoter has been proposed as an alternative mechanism of inactivation. Expre...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/1097-0215(20001115)88:4<554::aid-ijc6>3.0.
更新日期:2000-11-15 00:00:00
abstract::Gliomas are aggressive tumors of the central nervous system originating from proliferating neural cells. Regulators of neural stem or progenitor cells biology may thus influence aspects of brain tumorigenesis, such as the maintenance of tumor-propagating potential. We investigated the role of Pax6, a neurogenic transc...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.27606
更新日期:2012-10-01 00:00:00
abstract::No clear relationship between whole grain products and risk of breast cancer has been established. In a large prospective cohort study, we investigated the association between intake of whole grain products and risk of breast cancer by tumour receptor status [oestrogen receptor (ER) and progesterone receptor (PR)] and...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.23992
更新日期:2009-02-01 00:00:00
abstract::Neoplasms constituted an enormous burden and contributed to an estimated 8.2 million deaths in 2012 worldwide. FOXO1 (forkhead box O1), a member of the forkhead box (FOX) family, is a transcriptional factor involved in diverse cellular functions. Herein, we concentrate on recent studies of the antineoplastic roles of ...
journal_title:International journal of cancer
pub_type: 杂志文章,评审
doi:10.1002/ijc.31338
更新日期:2018-10-01 00:00:00