TNFα receptor1 drives hypoxia-promoted invasiveness of human melanoma cells
Aim: Oxygen deprivation leading to hypoxia represents a common feature of advanced solid tumors, able to control several aspects of tumor progression. Indeed, ability to respond to changes in oxygen partial pressure represents a hallmark of malignant cells. Aim of this study is to disclose new pathw...
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| Datum: | 2013 |
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| Hauptverfasser: | , , , |
| Format: | Artikel |
| Sprache: | English |
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Інститут експериментальної патології, онкології і радіобіології ім. Р.Є. Кавецького НАН України
2013
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| Schriftenreihe: | Experimental Oncology |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Zitieren: | TNFα receptor1 drives hypoxia-promoted invasiveness of human melanoma cells / C. Marconi, S. Peppicelli, F. Bianchini, L. Calorini // Experimental Oncology. — 2013. — Т. 35, № 3. — С. 187-191. — Бібліогр.: 24 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| Zusammenfassung: | Aim: Oxygen deprivation leading to hypoxia represents a common feature of advanced solid tumors, able to control several aspects of tumor progression. Indeed, ability to respond to changes in oxygen partial pressure represents a hallmark of malignant cells. Aim of this study is to disclose new pathway of hypoxia-induced tumor cell invasion. Materials and Methods: Hs294T human melanoma cells were grown in a gas mixture containing 0.3 % , and used to evaluate invasion on Matrigel-coated polycarbonate filters mounted in Boyden's chambers, MMP release and expression of inflammatory receptors and their ligands. Results: We demonstrate that hypoxia promotes the expression of TNFa receptor 1 (TNFαR1) able to drive a higher ability to penetrate Matrigel-coated filters of Hs294T human melanoma cells, an effect does not mediated by hypoxia-inducible factor (HIF)-1α. Conclusion: Expression inflammatory cytokine receptors in hypoxic human melanoma cells might provide a new target for improving strategies against local and distant tumor cell diffusion. Key Words: TNFa receptor 1, Hs294T human melanoma cells, hypoxia, cell invasiveness, metalloproteinase 2 and 9. |
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