書誌事項
- タイトル別名
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- Autocrine action of transforming growth factor-.BETA.1 (TGF-.BETA.1) in the invasiveness of human oral squamous cell carcinoma cell lines.
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抄録
We studied the possible role of transforming growth factor-β 1 (TGF-β 1) in tumor invasiveness by analyzing the production and activation of TGF-β 1 in eight human oral squamous cell carcinoma cell lines.<BR>The rate of secretion of TGF-β 1 was measured with a [125I]-TGF-β 1 radioreceptor assay. All human oral squamous cell carcinoma cells secreted TGF-β 1 into the culture media. Three cell lines secreted very high levels of activated TGF-19.1. When the invasion of a monolayer of lung endothelial cells was assayed in vitro, highly invasive cell lines were found to secrete activated TGF-β 1 at higher rates than weakly invasive cell lines. These findings suggested that the different invasiveness of these cell lines was associated with the rate of activated TGF-β 1 production. Highly invasive potential squamous cell carcinoma cells, such as SAS, Ca 9 -22, and OSC-20, were inhibited by treatment with neutralizing anti TGF-β 1-antibody. Furthermore, the invasiveness of weakly (T. T and HSC-2) and highly (SAS) invasive cells was enhanced by SAS culture media. Affinity labeling of [125I]-TGFβ 1 to cell surface receptors revealed the two major affinity crosslinked bands (type I and II I). These experiments indicate that TGF-β may modulate the invasive potential of human oral squamous cell carcinoma cells by autocrine action.
収録刊行物
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- 日本口腔外科学会雑誌
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日本口腔外科学会雑誌 42 (10), 962-968, 1996
社団法人 日本口腔外科学会
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詳細情報
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- CRID
- 1390001206529523968
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- NII論文ID
- 10011659090
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- NII書誌ID
- AN00189163
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- ISSN
- 21861579
- 00215163
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
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- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可