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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
18
pubmed:dateCreated
1993-10-1
pubmed:abstractText
It has been considered that growth of human lung cancer cells, like other malignant cells, is positively and negatively regulated by a variety of growth factors via autocrine as well as paracrine mechanisms. The autocrine mechanism is considered to be important in the autonomy of proliferation of cancer cells. Recently, the role of autocrine growth-inhibiting factors such as transforming growth factor beta attracts special attention for better understanding of growth regulation of malignant cells. Here, we have demonstrated that a multifunctional cytokine interleukin 6 (IL-6) had an inhibitory effect on the proliferation of human non-small cell lung cancer cell lines, as shown by the growth accelerating effect of the specific anti-IL-6 antibody as well as the effect of exogenously added IL-6. Moreover, IL-6 can be expressed and released by human lung cancer cells, and these cells had specific IL-6 receptors on their cell surfaces, suggesting an autocrine mechanism. The growth-inhibitory effect of IL-6 was additive to that of transforming growth factor beta, and could not be neutralized by the addition of anti-transforming growth factor beta antibody. These results suggested that IL-6 may function as another class of autocrine growth-inhibiting factor in the growth regulation of human lung cancer. Relatively lower IL-6 sensitivity of these cells than noncarcinogenic human bronchial epithelial cells also suggested that escape from growth regulation by inhibitory factors such as IL-6 could be involved in lung cancer oncogenesis.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0008-5472
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
53
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
4175-81
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1993
pubmed:articleTitle
Growth inhibition of human lung cancer cell lines by interleukin 6 in vitro: a possible role in tumor growth via an autocrine mechanism.
pubmed:affiliation
Department of Medicine and Physical Therapy, Tokyo University School of Medicine, Japan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't