Abstract:
:Adherent cells with the ability to inhibit NK activity were found in the spleens of young 8-week-old SJL/J mice. Such suppressor cells were also found in the spleens of other low-NK-reactive strains, but not in the spleen of age-matched high-NK-reactive strains. These suppressor cells had the characteristics of macrophages, since they were plastic- and nylon-adherent, phagocytosed latex and iron particles, and were resistant to treatment with anti-Thy-1.2 serum plus complement. Their inhibitory activity appeared to be due to their production and/or release of soluble suppressive factor(s). Their suppressor activity was similar to that of pyran copolymer-activated macrophages, which were previously shown to be suppressive for cytotoxicity by NK cells. We suggest here that macrophages may be involved in the physiological regulation of NK activity and may contribute to the low NK activity in some strains of mice.
journal_name
Int J Cancerjournal_title
International journal of cancerauthors
Riccardi C,Santoni A,Barlozzari T,Cesarinin C,Herberman RBdoi
10.1002/ijc.2910280621subject
Has Abstractpub_date
1981-12-01 00:00:00pages
811-8issue
6eissn
0020-7136issn
1097-0215journal_volume
28pub_type
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journal_title:International journal of cancer
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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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abstract::To investigate the genetic changes that occur during establishment of gastric cancer cell lines, 4 gastric cancer cell lines and their original tumor tissues were examined for microsatellite instability (MSI), loss of heterozygosity (LOH), and p53 mutation. MSI status did not change during the establishment, though th...
journal_title:International journal of cancer
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abstract::It is well known that certain cancers have shown clustering in socioeconomic groups, but limited data are available on recent results and time trends in such clustering. We determined standardized incidence ratios (SIR) for cancer, adjusted for age, period, region, parity and age at first childbirth among men and wome...
journal_title:International journal of cancer
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doi:10.1002/ijc.11150
更新日期:2003-07-10 00:00:00
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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::Germline CDKN2A mutations are found in 5-20% of melanoma families. Numerous studies have shown that carriers of CDKN2A mutations have increased risks of non-melanoma cancers, but so far there have been no studies investigating cancer risks in CDKN2A wild type (wt) melanoma families. In this prospective cohort study, i...
journal_title:International journal of cancer
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journal_title:International journal of cancer
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doi:10.1002/ijc.10232
更新日期:2002-04-01 00:00:00
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abstract::JNK activity has been implicated in the malignant proliferation, invasion and drug-resistance of glioma cells (GCs), but the molecular mechanisms underlying JNK activation are currently unknown. Here, we reported that MKK7, not MKK4, directly activates JNK in GCs and exerts oncogenic effects on tumor formation. Notabl...
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