Abstract:
:Spontaneous tumor development and primary oncogenesis were compared in a large number of NK4-deficient, homozygous C57Bl/6-bg/bg mice and their NK normal, heterozygous +/bg littermate controls. In a group of 167 retired breeders followed for spontaneous tumors, the probability of survival for mice eventually dying with a tumor was greater for the NK-competent, +/bg than for the NK-deficient, homozygous C57BL/6-bg/bg mice (p = 0.0019), although the higher overall incidence of tumors in the bg/bg group (48%) was not significantly different from that in the +/bg group (37%). In the bg/bg group the incidence of tumor death appeared to increase relatively sharply in the 25- to 29-month age bracket compared to the fairly regular increase in incidence observed in the +/bg group. All the spontaneous tumors except 2 (discovered in +/bg mice) were classified histologically as widely disseminated malignant lymphomas. The other two were one squamous-cell carcinoma and one sarcoma. A total of 73 bg/bg mice injected s.c. with benzo[alpha]pyrene (BP) had a higher overall incidence of tumors (81%) (rhabdomyosarcomas) than 138 +/bg mice (64%) and in the largest group (0.3 mg, n = 85) the bg/bg group developed tumors, at a higher incidence (p = 0.01) and with a shorter latency (p = 0.025) than the +/bg group. On the other hand, mice injected with dimethylbenzanthracene or given 4 weekly doses of 160 rads of gamma irradiation showed no difference in overall tumor incidence. In addition, mice injected with various doses of DMBA-induced murine leukemia virus (DMBA-LV) also showed no significant difference in tumor incidence. Others have reported that some of these treatments (DMBA, split-dose irradiation) cause profound NK suppression, thereby reducing NK differences between the two groups of mice. These results suggest that a partial NK impairment in beige mutant mice early in life may lead to significantly greater rates of death with spontaneous malignant tumors late in life. Some primary oncogenesis treatments (BP) but not others (DMBA, split-dose irradiation, leukemia viruses) cause tumors with a greater incidence and shorter latency in beige mice. The results suggest, but do not prove, that NK cells play a role in surveillance against spontaneously arising, and possibly some types of carcinogen-induced, tumors.
journal_name
Int J Cancerjournal_title
International journal of cancerauthors
Haliotis T,Ball JK,Dexter D,Roder JCdoi
10.1002/ijc.2910350414subject
Has Abstractpub_date
1985-04-15 00:00:00pages
505-13issue
4eissn
0020-7136issn
1097-0215journal_volume
35pub_type
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journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910220515
更新日期:1978-11-15 00:00:00
abstract::The role of the mismatch repair (MMR) system in correcting base-base mismatches is well established; its involvement in the response to DNA double strand breaks, however, is less clear. We investigated the influence of the essential component of MMR, the hMLH1 protein, on the cellular response to DNA-double strand bre...
journal_title:International journal of cancer
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更新日期:2010-06-15 00:00:00
abstract::A specific chromosomal aberration was observed in 14 of 15 avian lymphoblastoid cell lines transformed with Marek's disease herpesvirus. This aberration, designated dup(1p)(p22-p23), appeared as an extra G-positive band and interband on the short arm of one chromosome I homolog. Using fluorescent in situ hybridization...
journal_title:International journal of cancer
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更新日期:1993-06-19 00:00:00
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journal_title:International journal of cancer
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更新日期:2021-01-15 00:00:00
abstract::An important method for silencing tumor suppressor genes in cancers is by aberrant methylation (referred to as methylation) of CpG islands in gene promoter regions. In lung cancer, methylation of the genes retinoic acid receptor beta-2 (RARbeta-2), CDH13 (H-cadherin), p16(INK4a) (p16), RASSF1A (RAS association domain ...
journal_title:International journal of cancer
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abstract::Farnesyl transferase inhibitors (FTIs) were shown to be effective in modulating tumor growth in Ras-transformed tumor cells. Recent studies have focused on Rho GTPases as putative targets of FTI action. Previously, we demonstrated that FTIs were effective in inhibiting the growth and invasiveness of RhoC GTPase-overex...
journal_title:International journal of cancer
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更新日期:2011-07-01 00:00:00
abstract::CD4(+) T cells have been shown to be crucial for the induction and maintenance of cytotoxic T cell responses and to be also capable of mediating direct tumor rejection. Therefore, the anticancer therapeutic efficacy of peptide-based vaccines may be improved by addition of HLA class II epitopes to stimulate T helper c...
journal_title:International journal of cancer
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更新日期:2012-07-01 00:00:00
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abstract::Paraffin sections (n = 168, 27 benign, 16 low malignant potential [LMP] and 125 malignant tumours) from epithelial ovarian tumours were evaluated immunohistochemically for expression of retinoblastoma gene product (pRB) and p53 protein, and the relationship among pRB, p53 and cyclin-dependent kinase inhibitor 2 (CDKN2...
journal_title:International journal of cancer
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更新日期:1997-08-22 00:00:00
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更新日期:2011-11-01 00:00:00
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journal_title:International journal of cancer
pub_type: 杂志文章,多中心研究
doi:10.1002/ijc.28425
更新日期:2014-03-15 00:00:00
abstract::Paraffin sections from 190 epithelial ovarian tumours, including 159 malignant and 31 benign epithelial tumours, were analysed immunohistochemically for expression of cyclin-dependent kinase inhibitor 2 (CDKN2A) gene product p16INK4A (p16). Most benign tumours showed no p16 expression in the tumour cells, whereas only...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/(sici)1097-0215(19970220)74:1<57::aid-ijc1
更新日期:1997-02-20 00:00:00
abstract::We have previously reported a complete allelotype study of 86 primary breast carcinomas, in which each non-acrocentric chromosome arm was studied with at least one polymorphic DNA-marker for the presence of allelic imbalance (AI, allelic loss or allelic gain) in the tumor. Here we report the statistical analysis of th...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910500408
更新日期:1992-02-20 00:00:00
abstract::Prostate-specific antigen (PSA) has been characterized as a specific prostate marker, although recent studies have suggested the existence of PSA of nonprostatic sources. We have assessed the presence of PSA by an ultrasensitive assay in 276 serum and nonserum samples from women. Our data show the presence of PSA in 9...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/(SICI)1097-0215(19961115)68:4<424::AID-IJC
更新日期:1996-11-15 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
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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/(sici)1097-0215(19990820)84:4<437::aid-ijc
更新日期:1999-08-20 00:00:00
abstract::Prostate stem cell antigen (PSCA) and prostate-specific antigen (PSA) are overexpressed in most prostate cancers. PSCA- and PSA-derived, HLA-A2 binding peptides are specific targets for T-cell responses in vitro. A phase I/II trial was performed to demonstrate feasibility, safety and induction of antigen-specific immu...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.22097
更新日期:2006-11-15 00:00:00
abstract::Nanoparticle-based phototherapies, such as photothermal therapy (PTT) and photodynamic therapy (PDT), exhibit strong efficacy, minimal invasion and negligible side effects in tumor treatment. These phototherapies have received considerable attention and been extensively studied in recent years. In addition to directly...
journal_title:International journal of cancer
pub_type: 杂志文章,评审
doi:10.1002/ijc.31717
更新日期:2018-12-15 00:00:00
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journal_title:International journal of cancer
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更新日期:2011-06-15 00:00:00
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journal_title:International journal of cancer
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更新日期:1982-02-15 00:00:00
abstract::Primary mediastinal B-cell lymphoma is a locally highly aggressive but poorly disseminating tumor composed of medium sized or large cells most probably of thymic medullary origin. It has a mature B-cell phenotype, typically lacks immunoglobulin expression and has variable defects in expression of HLA-molecules. We pre...
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pub_type: 杂志文章
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更新日期:2001-05-01 00:00:00
abstract::Dimethylarsinic acid (DMA) is a major metabolite of inorganic arsenicals, which are epidemiologically significant chemicals in relation to liver cancer in mammals. The present study was conducted to determine the promoting effects of organic arsenicals related to DMA [monomethylarsonic acid (MMA) and trimethylarsine o...
journal_title:International journal of cancer
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更新日期:2002-07-10 00:00:00
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journal_title:International journal of cancer
pub_type: 杂志文章
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更新日期:1979-01-15 00:00:00
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journal_title:International journal of cancer
pub_type: 杂志文章,多中心研究
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更新日期:2009-12-01 00:00:00
abstract::The activity of systemic and in situ natural killer (NK) cells was measured in 3- to 5-week-old CBA mice with progressively growing murine sarcoma virus (MSV)-induced tumors. Splenic NK activity was depressed in tumor-bearing mice. NK activity was quite low or not detectable in unfractionated cell suspensions from the...
journal_title:International journal of cancer
pub_type: 杂志文章
doi:10.1002/ijc.2910270218
更新日期:1981-02-15 00:00:00
abstract::RB1 gene expression has been reported to be upregulated in colorectal carcinomas (CRC) at both the mRNA and protein levels when compared to normal colonic mucosa. However, allelic loss at the genomic level has been detected in CRC with widely differing frequencies ranging from 11.5% to 50%. To determine whether there ...
journal_title:International journal of cancer
pub_type: 杂志文章
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abstract::The peripheral blood monocyte is the reactive cell in the tube LAI assay. The monocyte loses its properties of adherence to glass upon exposure to specific antigen. Two different experiments to determine if lymphocytes, when they reacted with tumour, released mediators that were responsible for inhibiting monocyte gla...
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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
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更新日期:2005-09-10 00:00:00
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journal_title:International journal of cancer
pub_type: 杂志文章
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更新日期:1977-09-15 00:00:00
abstract::E-cadherin mutations are found in 50% of diffuse-type gastric carcinoma, but not in intestinal gastric carcinoma. Because cell-cell adhesion mediated by E-cadherin plays an important role in epithelial cell survival, E-cadherin mutations could alter the apoptotic behavior of tumor cells. p53 and Bcl-2 family members a...
journal_title:International journal of cancer
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更新日期:2003-03-10 00:00:00