FOJTOVA, M., Vladimír BOUDNÝ, A. KOVARIK, L. LAUEROVA, L. ADAMKOVA, K. SOUCKOVA a Jiří JARKOVSKÝ. Development of IFN-gamma resistance is associated with attenuation of SOCS genes induction and constitutive expression of SOCS 3 in melanoma cells. British Journal of Cancer. 2007, roč. 97, č. 2, s. 231-467. ISSN 0007-0920. |
Další formáty:
BibTeX
LaTeX
RIS
@article{753519, author = {Fojtova, M. and Boudný, Vladimír and Kovarik, A. and Lauerova, L. and Adamkova, L. and Souckova, K. and Jarkovský, Jiří}, article_number = {2}, keywords = {SOCS proteins; interferon resistance; STAT phosphorylation; malignant melanoma}, language = {eng}, issn = {0007-0920}, journal = {British Journal of Cancer}, title = {Development of IFN-gamma resistance is associated with attenuation of SOCS genes induction and constitutive expression of SOCS 3 in melanoma cells}, volume = {97}, year = {2007} }
TY - JOUR ID - 753519 AU - Fojtova, M. - Boudný, Vladimír - Kovarik, A. - Lauerova, L. - Adamkova, L. - Souckova, K. - Jarkovský, Jiří PY - 2007 TI - Development of IFN-gamma resistance is associated with attenuation of SOCS genes induction and constitutive expression of SOCS 3 in melanoma cells JF - British Journal of Cancer VL - 97 IS - 2 SP - 231 EP - 231 SN - 00070920 KW - SOCS proteins KW - interferon resistance KW - STAT phosphorylation KW - malignant melanoma N2 - The resistance to interferons (IFNs) limits their anticancer therapeutic efficacy. Here we studied the evolution of an IFN-resistant state in vitro using melanoma cell lines. We found that the cells became less sensitive to antiproliferative effect of IFN-g after prolonged cultivation enabling us to isolate sensitive and resistant subclones of the parental line. We investigated transcription of signal transducer and activator of transcription (STAT) 1 6 and suppressor of cytokine signalling (SOCS) 1 3 genes, and phosphorylation of STAT 1 protein. The resistant subline (termed WM 1158R) differed from the sensitive subline (WM 1158S) by a constitutive expression of SOCS 3, lack or weak SOCS 1 3 activation following IFN g, and short duration of cytokine activatory signal. Similar correlations were observed in additional melanoma lines differing in IFN sensitivities. At the protein level, IFN g induced strong and prolonged STAT 1 activation at serine 727 (S727) in WM 1158R while in WM 1158S cells phosphorylation of this amino acid was much less pronounced. ER -
FOJTOVA, M., Vladimír BOUDNÝ, A. KOVARIK, L. LAUEROVA, L. ADAMKOVA, K. SOUCKOVA a Jiří JARKOVSKÝ. Development of IFN-gamma resistance is associated with attenuation of SOCS genes induction and constitutive expression of SOCS 3 in melanoma cells. \textit{British Journal of Cancer}. 2007, roč.~97, č.~2, s.~231-467. ISSN~0007-0920.
|