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Cellular Biotechnology Laboratory

Contact

Giovanna Barbieri
+39 091 6809537 | +39 091 6809529
giovanna.barbieri@irib.cnr.it

Institute
Istituto per la Ricerca e l’Innovazione Biomedica
Via Ugo La Malfa, 153 – 90146 Palermo
Tel. +39 0503757523
https://www.irib.cnr.it/

Activities
  • MHC class II signalling and melanoma immune escape.
  • Extracellular vesicles and immune escape of metastatic melanoma.
  • Relationship between metastatic melanoma constitutively expressing MHC class II molecules and immune cells.
  • MHC class II molecules are expressed in almost 50% of melanoma and the constitutive expression of MHC class II molecules in melanoma cells could be associated to metastatic progression and immune escape probably interfering with the effectiveness of checkpoint immunotherapy.
Key Publication
  • M. Muller, J. Briscoe, C. Laxton, D. Guschin, A. Ziemiecki, O. Silvennoinen, A.G. Harpur, G. Barbieri, B.A. Witthuhn, C. Schindler, S. Pellegrini, A.F. Wilks, J.N. Ihle, G.R. Stark and I.M. Kerr. The protein tyrosine kinase JAK1 complements defects in interferon-a/b and -g signal transduction. Nature 366(6451), (1993) 129-135.
  • C. Lutticken, U.M. Wegenka, J. Yuan, J. Buschmann, C. Schindler, A. Ziemiecki, A.G. Harpur, A.F. Wilks, K. Yasukawa, T. Taga, T. Kishimoto, G. Barbieri, S. Pellegrini, M. Sendtner, P.C. Heinrich and F. Horn. Association of transcription factor APRF and protein kinase JAK1 with the interleukin-6 signal transducer gp130. Science 263(5143), (1994) 89-92.
  • N. Stahl, T.G. Boulton, T. Farruggella, N.Y. Ip, S. Davis, B.A. Witthuhn, F.W. Quelle, O. Silvennoinen, G. Barbieri, S. Pellegrini, J.N. Ihle and G.D. Yancopoulos.Association and activation of JAK-Tyk kinases by CNTF-LIF-OSM-IL6 b receptor components. Science 263(5143), (1994) 92-95.
  • G. Barbieri, V. Deffrennes, T. Prod’homme, J. Vedrenne, F. Baton, C. Cortes, A. Fischer, M.R. Bono, B. Lisowska-Grospierre, D. Charron and C. Alcaide-Loridan. Isoforms of the class II transactivator protein. Int. Immunol. 14 (8), (2002) 839-848
  • F. Costantini and G. Barbieri. The HLA-DR mediated signalling increases the migration and invasion of melanoma cells, the expression and lipid raft recruitment of adhesion receptors, PD-L1 and signal transduction proteins. Cell Signal. 36, (2017) 189-203. Epub 2017 May 8.
Istrument & technologies

Ultracentrifuge for the isolation of lipid rafts and small extracellular vesicles; Odyssey infrared image system (LI-COR), for western blot analysis; Light optical microscopes and fluorescence microscopes, for immunofluorescence experiments, wound repair assay, cell migration and invasion assays; Cell cultures.

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